fill out release guide

RELEASE_GUIDE.md

@@ -1,5 +1,18 @@
 # Release Guide
 
-  - Bump version in `app/code/community/Nexcessnet/Turpentine/etc/config.xml` >
-  `config/modules/Nexcessnet_Turpentine/version`
-  -
+  1. Switch to *devel* branch
+  2. Bump version in `app/code/community/Nexcessnet/Turpentine/etc/config.xml`
+  under `config/modules/Nexcessnet_Turpentine/version`
+  3. Commit
+  4. Merge *devel* into *master*
+  5. Tag *master* branch with `release-<version>`
+  6. Push *master* and *devel* branches to GitHub
+  7. Run make: `make all`
+    * The `all` is important, running bare `make` does not build the package
+  8. Upload new package (from `build/`) to Magento Connect, use only the notes
+  from the latest section of the release notes from
+  `build/magento-connect-changelog-<version>.html` in the release notes box
+  9. Update the description box with contents of
+  `build/magento-connect-desc-<version>.html`
+  10. ???
+  11. Profit