Update scaffolded tests and README to latest

Author: danielbachhuber

README.md

@@ -1,7 +1,7 @@
 wp-cli/cache-command
 ====================
 
-Manage object and transient caches.
+Manages object and transient caches.
 
 [![Build Status](https://travis-ci.org/wp-cli/cache-command.svg?branch=master)](https://travis-ci.org/wp-cli/cache-command)
 
@@ -515,7 +515,7 @@ Once you've decided to commit the time to seeing your pull request through, [ple
 
 ## Support
 
-Github issues aren't for general support questions, but there are other venues you can try: http://wp-cli.org/#support
+Github issues aren't for general support questions, but there are other venues you can try: https://wp-cli.org/#support
 
 
 *This README.md is generated dynamically from the project's codebase using `wp scaffold package-readme` ([doc](https://github.com/wp-cli/scaffold-package-command#wp-scaffold-package-readme)). To suggest changes, please submit a pull request against the corresponding part of the codebase.*