Only one heading for README

Author: hannahramadan

helpers/sql-obfuscation/README.md

@@ -6,7 +6,7 @@ It has been renamed to **`opentelemetry-helpers-sql-processor`**.
 
 All future development, bug fixes, and feature releases will occur in the new gem.
 
-# OpenTelemetry Instrumentation Helpers: SQL Obfuscation
+## OpenTelemetry Instrumentation Helpers: SQL Obfuscation
 
 This Ruby gem contains logic to obfuscate SQL. It's intended for use by by gem authors instrumenting SQL adapter libraries, such as mysql2, pg, and trilogy.