Merge pull request #3089 from srdo/minor-add-release-process-doc

MINOR: Add release process document
diff --git a/DEVELOPER.md b/DEVELOPER.md
index 0000e78..c75595f 100644
--- a/DEVELOPER.md
+++ b/DEVELOPER.md
@@ -145,8 +145,9 @@
 
 Documentation contributions are very welcome!
 
-You can contribute documentation by pull request, as same as code contribution.
-Main directory is ```docs/```, and you can refer to docs/README.md for how to build / test website.
+You can contribute documentation by pull request, using the same process as code contribution.
+Release specific documentation can be found in `docs/` in this repository.
+The Storm website source repository can be found [here](https://github.com/apache/storm-site). Please refer to the README in that repository for how to build and test the website.
 
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