Add instructions for ol package

Release-Procedure.md

@@ -46,6 +46,22 @@ E.g.
     git add package.json
     git commit -m 'Update package version to 3.1.0'
 
+### Update `package.json` for the ol package
+
+Update the beta version number in `package/package.json` to reflect the target release.  Create a commit for this change as well.
+
+E.g.
+```json
+{
+  "name": "ol",
+  "version": "3.1.0-beta.1"
+}
+```
+
+    git add package/package.json
+    git commit -m 'Update ol package version to 3.1.0-beta.1'
+
+
 ### Merge the release branch
 
 Create a pull request and merge the release branch.  This allows for any final review of upgrade notes or other parts of the changelog.
@@ -66,6 +82,14 @@ Run the `publish.sh` task with the version number as specified in the `package.j
 
     ./tasks/publish.sh 3.1.0
 
+### Publish the ol package to npm
+
+Run the make target for creating the package, and publish the package to npm.  This implies you have an npm user account which has the correct permissions.
+
+    make package
+    cd build/package
+    npm publish
+
 ### Update website
 
 You need a local clone of the [openlayers.github.io](https://github.com/openlayers/openlayers.github.io) repo, with the `build` branch checked out.