Update ChangeLog

Author: sebastianbergmann

ChangeLog.md

@@ -2,6 +2,12 @@
 
 All notable changes are documented in this file using the [Keep a CHANGELOG](http://keepachangelog.com/) principles.
 
+## [9.1.2] - 2020-MM-DD
+
+### Fixed
+
+* [#791](https://github.com/sebastianbergmann/php-code-coverage/pull/791): Cache Warmer does not warm all caches
+
 ## [9.1.1] - 2020-08-10
 
 ### Added
@@ -201,6 +207,7 @@ All notable changes are documented in this file using the [Keep a CHANGELOG](htt
 * Class names are now abbreviated (unqualified name shown, fully qualified name shown on hover) in the file view of the HTML report
 * Update HTML report to Bootstrap 4
 
+[9.1.2]: https://github.com/sebastianbergmann/php-code-coverage/compare/9.1.1...master
 [9.1.1]: https://github.com/sebastianbergmann/php-code-coverage/compare/9.1.0...9.1.1
 [9.1.0]: https://github.com/sebastianbergmann/php-code-coverage/compare/9.0.0...9.1.0
 [9.0.0]: https://github.com/sebastianbergmann/php-code-coverage/compare/8.0...9.0.0