Fix format of CHANGELOG.md

Author: nicolas-grekas

CHANGELOG.md

@@ -1,44 +1,44 @@
 CHANGELOG
 =========
 
-* 2.0.0 (2020-01-02)
+# 2.0.0 (2020-01-02)
 
   * Remove DiactorosFactory
 
-* 1.3.0 (2019-11-25)
+# 1.3.0 (2019-11-25)
 
   * Added support for streamed requests
   * Added support for Symfony 5.0+
   * Fixed bridging UploadedFile objects
   * Bumped minimum version of Symfony to 4.4
 
-* 1.2.0 (2019-03-11)
+# 1.2.0 (2019-03-11)
 
   * Added new documentation links
   * Bumped minimum version of PHP to 7.1
   * Added support for streamed responses
 
-* 1.1.2 (2019-04-03)
+# 1.1.2 (2019-04-03)
 
   * Fixed createResponse
 
-* 1.1.1 (2019-03-11)
+# 1.1.1 (2019-03-11)
 
   * Deprecated DiactorosFactory, use PsrHttpFactory instead
   * Removed triggering of deprecation
 
-* 1.1.0 (2018-08-30)
+# 1.1.0 (2018-08-30)
 
   * Added support for creating PSR-7 messages using PSR-17 factories
 
-* 1.0.2 (2017-12-19)
+# 1.0.2 (2017-12-19)
 
   * Fixed request target in PSR7 Request (mtibben)
 
-* 1.0.1 (2017-12-04)
+# 1.0.1 (2017-12-04)
 
   * Added support for Symfony 4 (dunglas)
 
-* 1.0.0 (2016-09-14)
+# 1.0.0 (2016-09-14)
 
   * Initial release