fix(curriculum): links navigating to nothing (#46592)

curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/authentication-with-socket.io.md

@@ -65,7 +65,7 @@ console.log('user ' + socket.request.user.name + ' connected');
 
 It will log to the server console who has connected!
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/1414cc9433044e306dd7fd0caa1c6254).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project up to this point <a href="https://gist.github.com/camperbot/1414cc9433044e306dd7fd0caa1c6254" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/1414cc9433044e306dd7fd0caa1c6254</a>.
 
 # --hints--
 

curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/communicate-by-emitting.md

@@ -38,7 +38,7 @@ socket.on('user count', function(data) {
 
 Now, try loading up your app, authenticate, and you should see in your client console '1' representing the current user count! Try loading more clients up, and authenticating to see the number go up.
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/28ef7f1078f56eb48c7b1aeea35ba1f5).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="https://gist.github.com/camperbot/28ef7f1078f56eb48c7b1aeea35ba1f5" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/28ef7f1078f56eb48c7b1aeea35ba1f5</a>.
 
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curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/handle-a-disconnect.md

@@ -22,7 +22,7 @@ To make sure clients continuously have the updated count of current users, you s
 
 **Note:** Just like `'disconnect'`, all other events that a socket can emit to the server should be handled within the connecting listener where we have 'socket' defined.
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/ab1007b76069884fb45b215d3c4496fa).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="https://gist.github.com/camperbot/ab1007b76069884fb45b215d3c4496fa" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/ab1007b76069884fb45b215d3c4496fa</a>.
 
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curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/how-to-put-a-profile-together.md

@@ -24,7 +24,7 @@ Also, in `profile.pug`, add a link referring to the `/logout` route, which will
 a(href='/logout') Logout
 ```
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/136b3ad611cc80b41cab6f74bb460f6a).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="https://gist.github.com/camperbot/136b3ad611cc80b41cab6f74bb460f6a" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/136b3ad611cc80b41cab6f74bb460f6a</a>.
 
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curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/implement-the-serialization-of-a-passport-user.md

@@ -40,7 +40,7 @@ myDB(async client => {
 
 Be sure to uncomment the `myDataBase` code in `deserializeUser`, and edit your `done(null, null)` to include the `doc`.
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/175f2f585a2d8034044c7e8857d5add7).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="https://gist.github.com/camperbot/175f2f585a2d8034044c7e8857d5add7" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/175f2f585a2d8034044c7e8857d5add7</a>.
 
 # --hints--
 

curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/implementation-of-social-authentication.md

@@ -31,7 +31,7 @@ app.route('/login')
   });
 ```
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/1f7f6f76adb178680246989612bea21e).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project up to this point <a href="https://gist.github.com/camperbot/1f7f6f76adb178680246989612bea21e" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/1f7f6f76adb178680246989612bea21e</a>.
 
 # --hints--
 

curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/registration-of-new-users.md

@@ -47,7 +47,7 @@ app.route('/register')
   );
 ```
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/b230a5b3bbc89b1fa0ce32a2aa7b083e).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="https://gist.github.com/camperbot/b230a5b3bbc89b1fa0ce32a2aa7b083e" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/b230a5b3bbc89b1fa0ce32a2aa7b083e</a>.
 
 **NOTE:** From this point onwards, issues can arise relating to the use of the *picture-in-picture* browser. If you are using an online IDE which offers a preview of the app within the editor, it is recommended to open this preview in a new tab.
 

curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/serialization-of-a-user-object.md

@@ -28,7 +28,7 @@ passport.deserializeUser((id, done) => {
 
 NOTE: This `deserializeUser` will throw an error until we set up the DB in the next step, so for now comment out the whole block and just call `done(null, null)` in the function `deserializeUser`.
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/7068a0d09e61ec7424572b366751f048).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="https://gist.github.com/camperbot/7068a0d09e61ec7424572b366751f048" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/7068a0d09e61ec7424572b366751f048</a>.
 
 # --hints--
 

curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/set-up-a-template-engine.md

@@ -28,7 +28,7 @@ Change the argument of the `res.render()` declaration in the `/` route to be the
 
 If all went as planned, your app home page will stop showing the message "`Pug template is not defined.`" and will now display a message indicating you've successfully rendered the Pug template!
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/3515cd676ea4dfceab4e322f59a37791).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="https://gist.github.com/camperbot/3515cd676ea4dfceab4e322f59a37791" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/3515cd676ea4dfceab4e322f59a37791</a>.
 
 # --hints--
 

curriculum/challenges/english/06-quality-assurance/advanced-node-and-express/set-up-the-environment.md

@@ -42,7 +42,7 @@ Now try loading up your app and authenticate and you should see in your server c
 
 **Note:**`io()` works only when connecting to a socket hosted on the same url/server. For connecting to an external socket hosted elsewhere, you would use `io.connect('URL');`.
 
-Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/aae41cf59debc1a4755c9a00ee3859d1).
+Submit your page when you think you've got it right. If you're running into errors, you can check out the project completed up to this point <a href="https://gist.github.com/camperbot/aae41cf59debc1a4755c9a00ee3859d1" target="_blank" rel="noopener noreferrer nofollow">https://gist.github.com/camperbot/aae41cf59debc1a4755c9a00ee3859d1</a>.
 
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