Update Author Link (#138)

* Fix my Github username link

* Fix GitHub link in Jobstore module

Author: starry-shivam

ptbcontrib/postgres_persistence/README.md

@@ -45,8 +45,8 @@ application = Application.builder().token(...).persistence(PostgresPersistence(s
 
 ## Authors
 
-*   [Stɑrry Shivɑm](https://github.com/starry69)
+*   [Stɑrry Shivɑm](https://github.com/starry-shivam)
 
 ## Contributors
 
-*   [Chin Rong Ong](https://github.com/crong12)
+*   [Chin Rong Ong](https://github.com/crong12)

ptbcontrib/ptb_jobstores/README.md

@@ -65,5 +65,5 @@ pip install "ptbcontrib[ptb_jobstores_sqlalchemy] @ git+https://github.com/pytho
 ## Authors
 
 *   [Niko Bolg](https://github.com/nkbolg)
-*   [Starry Shivam](https://github.com/starry69)
+*   [Starry Shivam](https://github.com/starry-shivam)
 *   [Holmes555](https://github.com/Holmes555)