samply: add page (#22383)

Co-authored-by: Harshavardhan <harshath3018@gmail.com>

pages/common/samply.md

@@ -0,0 +1,20 @@
+# samply
+
+> Sample and record CPU profiles for analysis.
+> More information: <https://github.com/mstange/samply>.
+
+- Record a profile of a command and open it in the browser:
+
+`samply record {{path/to/command arg1 arg2 ...}}`
+
+- Adjust sampling rate:
+
+`samply record --rate {{rate_in_hz}} {{path/to/command arg1 arg2 ...}}`
+
+- Record a profile to a file without opening the browser:
+
+`samply record --save-only --output {{path/to/profile.json}} -- {{path/to/command arg1 arg2 ...}}`
+
+- Load a previously saved profile in the browser:
+
+`samply load {{path/to/profile.json}}`