Update documentation to add bash autocompletion for help

CHANGELOG.md

@@ -1,5 +1,6 @@
 # unreleased
 
+
 ## Features
 - Add build for windows/ARM64 platform. #3190 (@alcroito)
 
@@ -35,6 +36,7 @@
 - Update console dependency to 0.16, see #3351 (@musicinmybrain)
 - Fixed some typos #3244 (@ssbarnea)
 - Update onig_sys dependency to 69.9.1 to fix a gcc build failure #3400 (@CosmicHorrorDev)
+- Update documentation to add bash autocompletion for help #3423 (@euge908)
 
 ## Syntaxes
 

README.md

@@ -231,6 +231,7 @@ You can use `bat` to colorize help text: `$ cp --help | bat -plhelp`
 
 You can also use a wrapper around this:
 
+
 ```bash
 # in your .bashrc/.zshrc/*rc
 alias bathelp='bat --plain --language=help'
@@ -241,6 +242,16 @@ help() {
 
 Then you can do `$ help cp` or `$ help git commit`.
 
+
+Bashcompletion might not work properly with the above command, because `help` is aliased as a function. To resolve this, you can also put the following in your `.bashrc`:
+
+```
+# in your .bashrc/.zshrc/*rc
+complete -F _command help 
+
+# Ex: try `help gi<TAB>`
+```
+
 When you are using `zsh`, you can also use global aliases to override `-h` and `--help` entirely:
 
 ```bash