Update README.md with notes about shell completions when installing w… (

#1102)

README.md

@@ -1041,6 +1041,11 @@ or alternatively if you don't want to edit your `~/.bashrc`:
 spago --bash-completion-script $(which spago) >> ~/.bash_completion
 ```
 
+> [!NOTE]\
+> If you installed Spago not with NPM, but with PNPM or some other package manager, this package manager might have bundled your installation and your package name in the script may end up being incorrect.
+> For example, when installed with PNPM, the resulting script will reference incorrect package `bundle.js` instead of `spago`.
+> If you're using something other than NPM, verify the referenced package name in the completions script.
+
 ### Install autocompletions for `zsh`
 
 Autocompletions for `zsh` need to be somewhere in the `fpath` - you can see the folders
@@ -1066,8 +1071,11 @@ Then, reload completions with:
 compinit
 ```
 
-*Note*: you might need to call this multiple times for it to work.
+> [!NOTE]\
+> You might need to call this multiple times for it to work.
 
+> [!NOTE]\
+> See the note in the Bash section above when installing Spago with a package manager other than NPM.
 
 ## Concepts and explanations