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Further explanation on when you should use PROJECT_ID
w9jds · Jan 9, 2019 · ab8b52a · ab8b52a
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@@ -8,7 +8,7 @@ This Action for [firebase-tools](https://github.com/firebase/firebase-tools) ena
 
 ### Environment variables
 
-* `PROJECT_ID` - **Optional**. To specify a specific project to use for all commands, not required but recommended.
+* `PROJECT_ID` - **Optional**. To specify a specific project to use for all commands, not required if you specify a project in your `.firebaserc` file.
 
 #### Example