Add java-only upload step to maintainer docs
Summary: Per title
@@ -5,6 +5,7 @@ you can find in your [Bintray profile](https://bintray.com/profile/edit).
1. Bump the `VERSION_NAME` in `gradle.properties`.
2. `hg commit -m 'vx.y.z'`, submit, land.
-3. From the checked out GitHub repository, run `./gradlew bintrayUpload`.
-4. Bump the `VERSION_NAME` to the next patch release and appending `-SNAPSHOT`, commit, land.
-5. Tag the release on the [Github release page](https://github.com/facebookincubator/fbjni/releases).
+3. From the checked out GitHub repository, run `./gradlew bintrayUpload` (Android uploads).
+4. From the checked out GitHub repository, run `./gradlew -b host.gradle bintrayUpload` (Java-only uploads).
+5. Bump the `VERSION_NAME` to the next patch release and appending `-SNAPSHOT`, commit, land.
+6. Tag the release on the [Github release page](https://github.com/facebookincubator/fbjni/releases).
