timg: add page (#19719)

Co-authored-by: Dylan <145150333+dmmqz@users.noreply.github.com>

pages/common/timg.md

@@ -0,0 +1,32 @@
+# timg
+
+> A terminal image and video viewer.
+> More information: <https://github.com/hzeller/timg#synopsis>.
+
+- Display a static image:
+
+`timg {{image.jpg}}`
+
+- Display all JPEG images in the current directory:
+
+`timg *.jpg`
+
+- Display all the bitmaps in icons file:
+
+`timg {{example.ico}}`
+
+- Play a video:
+
+`timg {{video.mp4}}`
+
+- Play contents of webcam:
+
+`timg {{/dev/videoX}}`
+
+- Play an animated GIF:
+
+`timg {{gif.gif}}`
+
+- Display version:
+
+`timg --version`