Update release instructions

Author: martijndwars

Diff for: RELEASE.md

@@ -1,6 +1,6 @@
 # Release process
 
-1. Update version string in `build.gradle` (1x), `README.md` (4x) to the new (non-SNAPSHOT) version.
+1. Update version string in `build.gradle` (1x), `README.md` (2x) to the new (non-SNAPSHOT) version.
 
 ```
 ./scripts/version.sh OLD_VERSION NEW_VERSION
@@ -9,8 +9,10 @@
 2. Commit "Release x.y.z", tag this commit with the new version "x.y.z".
 
 ```
+git add README.md build.gradle
 git commit -m "Release NEW_VERSION"
 git tag -a NEW_VERSION -m "Version NEW_VERSION"
+git push --tags
 ```
 
 3. [Deploy to OSSRH with Gradle](http://central.sonatype.org/pages/gradle.html):

Diff for: scripts/version.sh

@@ -1,4 +1,4 @@
-#/usr/bin/env sh
+#!/usr/bin/env sh
 set -eu
 
 if [ "$#" -ne 2 ]; then