docs: add information on cloning

Author: chrisgrieser

README.md

@@ -12,13 +12,16 @@ GitHub Assistant for Alfred.
 - Search all public GitHub repositories via the keyword `gh`.
 	+ <kbd>⏎</kbd>: Open the repo's GitHub page.
 	+ <kbd>⌥⏎</kbd>: Copy the repo URL.
+	+ <kbd>⌃⏎</kbd>: Shallow clone the repo to a local folder. Optionally,
+	  creates a fork on GitHub with the `gh` cli and prepares the repo for a PR.
 	+ <kbd>⇧⏎</kbd>: Search the last 100 issues, use <kbd>⏎</kbd> to open the
 	  issue in the browser.
 - Quick access the repositories you own via `gg`.
 	+ <kbd>⏎</kbd>: If the repo is available locally on your device, open it in
 	  Finder. Otherwise, open the repo's GitHub page.
 	+ <kbd>⌘⏎</kbd>: Open the repo's GitHub page.
 	+ <kbd>⌥⏎</kbd>: Copy the repo link.
+	+ <kbd>⌃⏎</kbd>: Shallow clone the repo to a local folder.
 	+ <kbd>⇧⏎</kbd>: Search the last 100 issues, use <kbd>⏎</kbd> to open the
 	  issue in the browser.
 - Open recent GitHub issues you are involved in with `ghi`.

info.plist

@@ -1333,13 +1333,16 @@
 - Search all public GitHub repositories via the keyword `gh`.
 	+ <kbd>⏎</kbd>: Open the repo's GitHub page.
 	+ <kbd>⌥⏎</kbd>: Copy the repo URL.
+	+ <kbd>⌃⏎</kbd>: Shallow clone the repo to a local folder. Optionally,
+	  creates a fork on GitHub with the `gh` cli and prepares the repo for a PR.
 	+ <kbd>⇧⏎</kbd>: Search the last 100 issues, use <kbd>⏎</kbd> to open the
 	  issue in the browser.
 - Quick access the repositories you own via `gg`.
 	+ <kbd>⏎</kbd>: If the repo is available locally on your device, open it in
 	  Finder. Otherwise, open the repo's GitHub page.
 	+ <kbd>⌘⏎</kbd>: Open the repo's GitHub page.
 	+ <kbd>⌥⏎</kbd>: Copy the repo link.
+	+ <kbd>⌃⏎</kbd>: Shallow clone the repo to a local folder.
 	+ <kbd>⇧⏎</kbd>: Search the last 100 issues, use <kbd>⏎</kbd> to open the
 	  issue in the browser.
 - Open recent GitHub issues you are involved in with `ghi`.