Created a markdown explanation of the release process.

CHANGELOG.md

@@ -6,6 +6,7 @@
 * [#28](https://github.com/dblock/fui/pull/28): The `--ignorexib` option has been renamed to `--ignore-xib-files` - [@jeffctown](https://github.com/jeffctown).
 * [#31](https://github.com/dblock/fui/pull/31): Added Danger, PR linter and a README TOC - [@jeffctown](https://github.com/jeffctown).
 * [#32](https://github.com/dblock/fui/pull/32): Added support for ignoring bridging headers - [@jeffctown](https://github.com/jeffctown).
+* [#33](https://github.com/dblock/fui/pull/33): Added RELEASING.md to document release process - [@jeffctown](https://github.com/jeffctown).
 * Your contribution here.
 
 ### 0.4.1 (8/16/2017)

RELEASING.md

@@ -0,0 +1,61 @@
+# Releasing fui
+
+There are no hard rules about when to release fui. Release bug fixes frequently, features not so frequently, and breaking changes rarely.
+
+### Release
+
+Run tests, check that all tests succeed locally.
+
+```
+bundle install
+rake
+```
+
+Check that the last build succeeded in [Travis CI](https://travis-ci.org/dblock/fui).
+
+Change "Next" in [CHANGELOG.md](CHANGELOG.md) to the current date.
+
+```
+### 0.4.0 (12/10/2018)
+```
+
+Remove the line with "Your contribution here.", since there will be no more contributions to this release.
+
+Commit your changes.
+
+```
+git add CHANGELOG.md
+git commit -m "Preparing for release, 0.4.0."
+git push origin master
+```
+
+Release.
+
+```
+$ rake release
+
+fui 0.4.0 built to pkg/fui-0.4.0.gem.
+Tagged v0.4.0.
+Pushed git commits and tags.
+Pushed fui 0.4.0 to rubygems.org.
+```
+
+### Prepare for the Next Version
+
+Add the next release to [CHANGELOG.md](CHANGELOG.md).
+
+```
+### 0.4.1 (Next)
+
+* Your contribution here.
+```
+
+Increment the third version number in [lib/fui/version.rb](lib/fui/version.rb).
+
+Commit your changes.
+
+```
+git add CHANGELOG.md lib/fui/version.rb
+git commit -m "Preparing for next development iteration, 0.4.1."
+git push origin master
+```