User documentation

Summary

User documentation to be created.

Steps for creating animated gif screen recordings in vscode:

• install 'Chronicler' extension. It depends on ffmpeg, which can be automatically downloaded when starting the first recording
• In windows, turn on the setting under additional mouse options to show animated circles at the mouse pointer when pressing the Ctrl button
• hide:
  • status bar
  • explorer
  • panel
• disable the gitlens extension, otherwise git information will be shown as inlay hints and when hovering over a symbol
• adjust window size not to have blank areas in the editor
• adjust font size to have a recording with readable characters
• start recording by Ctrl-Alt-Shift-R and wait for the grace period before the recording begins (5 secs by default)
• do what you want to show
• stop recording pressing Ctrl-Alt-Shift-S

/cc @aknappqwt @mmagyari