Update CHANGELOG.md to reflect the promotion of 2.1.1

Obvious fix; these changes are the result of automation not creative thinking.

CHANGELOG.md

@@ -1,25 +1,22 @@
 # knife-openstack Change Log
 
-<!-- latest_release 2.1.1 -->
+<!-- latest_release -->
+<!-- latest_release -->
+<!-- release_rollup -->
+<!-- release_rollup -->
+<!-- latest_stable_release -->
 ## [v2.1.1](https://github.com/chef/knife-openstack/tree/v2.1.1) (2018-11-20)
 
 #### Merged Pull Requests
 - Have the docs team own the readme [#207](https://github.com/chef/knife-openstack/pull/207) ([tas50](https://github.com/tas50))
-<!-- latest_release -->
-<!-- release_rollup since=2.1.0 -->
-### Changes not yet released to rubygems.org
-
-#### Merged Pull Requests
-- Have the docs team own the readme [#207](https://github.com/chef/knife-openstack/pull/207) ([tas50](https://github.com/tas50)) <!-- 2.1.1 -->
-<!-- release_rollup -->
 <!-- latest_stable_release -->
+
 ## [2.1.0](https://github.com/chef/knife-openstack/tree/2.1.0) (2017-08-21)
 [Full Changelog](https://github.com/chef/knife-openstack/compare/v2.0.1...2.1.0)
 
 **Merged pull requests:**
 
 - Test on the latest Ruby releases in Travis [\#202](https://github.com/chef/knife-openstack/pull/202) ([tas50](https://github.com/tas50))
-<!-- latest_stable_release -->
 
 ## [v2.0.1](https://github.com/chef/knife-openstack/tree/v2.0.1) (2017-03-21)
 [Full Changelog](https://github.com/chef/knife-openstack/compare/v2.0.0...v2.0.1)