Remove before first release txt from readme

Author: spacether

README.md

@@ -1,8 +1,5 @@
 <h1 align="center">OpenAPI JSON Schema Generator</h1>
 
-| **IMPORTANT: before the first release, one will need to build the project locally to use the enhancements, bug fixes in the latest master** |
-| --- |
-
 <div align="center">
 
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