Get that sweet punctuation

Releasing.md

@@ -3,7 +3,7 @@
 For SwiftLint contributors, follow these steps to cut a release:
 
 1. Update version number: `make set_version 0.2.0`
-2. Come up with a witty washer/dryer themed release name. Past names include:
+2. Come up with a witty washer- or dryer-themed release name. Past names include:
     * Tumble Dry
     * FabricSoftenerRule
     * Top Loading
@@ -14,12 +14,13 @@ For SwiftLint contributors, follow these steps to cut a release:
 5. Tag: `git tag -a 0.2.0 -m "0.2.0: Tumble Dry"; git push origin 0.2.0`
 6. Make sure you have the latest stable Xcode version installed and
   `xcode-select`ed.
-7. Create the pkg installer, framework zip and portable zip: `make release`
+7. Create the pkg installer, framework zip, and portable zip: `make release`
 8. Create a GitHub release: https://github.com/realm/SwiftLint/releases/new
     * Specify the tag you just pushed from the dropdown.
     * Set the release title to the new version number & release name.
     * Add the changelog section to the release description text box.
-    * Upload the pkg installer, framework zip and portable zip you just built to
-      the GitHub release binaries.
+    * Upload the pkg installer, framework zip, and portable zip you just built
+      to the GitHub release binaries.
     * Click "Publish release".
 9. Publish to Homebrew and CocoaPods trunk: `make publish`
+10. Celebrate. :tada: