Info about committing node_modules to the git repo (#1454)

Co-authored-by: Laura Coursen <lecoursen@github.com>

content/actions/creating-actions/creating-a-javascript-action.md

@@ -176,7 +176,7 @@ git tag -a -m "My first action release" v1
 git push --follow-tags
 ```
 
-As an alternative to checking in your `node_modules` directory you can use a tool called [`@vercel/ncc`](https://github.com/vercel/ncc) to compile your code and modules into one file used for distribution.
+Checking in your `node_modules` directory can cause problems. As an alternative, you can use a tool called [`@vercel/ncc`](https://github.com/vercel/ncc) to compile your code and modules into one file used for distribution.
 
 1. Install `vercel/ncc` by running this command in your terminal.
   `npm i -g @vercel/ncc`