removed unneeded changelog entry

Author: jeremydvoss

CHANGELOG.md

@@ -4,8 +4,6 @@
 
 ## [1.0.0b7](https://github.com/microsoft/ApplicationInsights-Python/releases/tag/v1.0.0b7) - 2022-09-26
 
-- Corrected README mistake
-    ([#202](https://github.com/microsoft/ApplicationInsights-Python/pull/202))
 - Moved and updated README
     ([#201](https://github.com/microsoft/ApplicationInsights-Python/pull/201))
 - Adding requests, flask, and psycopg2 instrumentations