docs: Remove headings in changelog (#188)

Author: mtrezza

CHANGELOG.md

@@ -5,20 +5,9 @@
 
 * upgrade aws-sdk from 2.906.0 to 2.907.0 ([#166](https://github.com/parse-community/parse-server-s3-adapter/issues/166)) ([e224f0a](https://github.com/parse-community/parse-server-s3-adapter/commit/e224f0aa3388b03307e06700aa0dbe9251fae1a9))
 
-# Change Log
-
-## Unreleased (Master Branch)
-[Full Changelog](https://github.com/parse-community/parse-server-s3-adapter/compare/1.6.2...master)
-### Breaking Changes
-none
-### Notable Changes
-none
-### Other Changes
-none
-___
-
 ## 1.6.2
 [Full Changelog](https://github.com/parse-community/parse-server-s3-adapter/compare/1.6.1...1.6.2)
+
 ### Breaking Changes
 none
 ### Notable Changes