Fix valdidation errors in release.md

Author: einarf

extras/RELEASE.md

@@ -1,19 +1,21 @@
-To release:
+
+# Release Instructions
+
 * Verify pass in [CircleCI](https://circleci.com/gh/greenmoss/PyWavefront)
-    * Check against latest `master`
+  * Check against latest `master`
 * Update local git
-    * `git fetch -ap && git pull origin master`
+  * `git fetch -ap && git pull origin master`
 * Update `CHANGELOG.md` from merged PRs
 * Update contributors in `README.md`
 * Update version in `setup.py`
 * `git add -A && git commit -v`
-    * Use commit message 'Prepare for release x.y.z'
+  * Use commit message 'Prepare for release x.y.z'
 * `git push origin master`
 * Create/activate virtualenv, and `pip install twine`
-    * **MUST** be Python 3.7 or later!
+  * **MUST** be Python 3.7 or later!
 * `python setup.py bdist_wheel`
 * `twine upload dist/$(ls -tr dist/ | tail -1)`
 * Create Github release, named as version
 * Close Github issues associated with merged PR
 * Update local git
-    * `git fetch -ap && git pull origin master`
+  * `git fetch -ap && git pull origin master`