Updated Release Procedure (markdown)

Release-Procedure.md

@@ -24,7 +24,7 @@ Commit your changes:
 
 ### Update `package.json`
 
-Update the version numbers in `package.json` to reflect the target release, and run the prepare task to update the version in `src/ol/util.js`.  Create a commit for this change as well.
+Update the version numbers in `package.json` to reflect the target release.
 
 E.g. in `package.json`
 ```json
@@ -34,8 +34,7 @@ E.g. in `package.json`
 }
 ```
 
-    npm run prepare
-    git add package.json src/ol/util.js
+    git add package.json
     git commit -m 'Update package version to 3.1.0'
 
 ### Merge the release branch