Describe step to create integration pull request

Author: elizarov

integration/README.md

@@ -22,5 +22,6 @@ Follow the following simple guidelines when contributing integration with your f
   * List of modules in top-level [`pom.xml`](../pom.xml).
   * List of dependencies for documentation site in [`site/pom.xml`](../site/pom.xml).
   * List of directories for documentation site in [`site/build.xml`](../site/build.xml).
-  * List of modules at the root of documentation site in [`site/docs/index.md`](../site/docs/index.md)
-* Update links to documentation website as explained [here](../knit/README.md#usage)
+  * List of modules at the root of documentation site in [`site/docs/index.md`](../site/docs/index.md).
+* Update links to documentation website as explained [here](../knit/README.md#usage).
+* Squash your contribution to a single commit and create pull request to `develop` branch.