Update docs/gsoc.rst

Co-Authored-By: Vaibhav Gupta <[email protected]>

Author: KartikKapil

docs/gsoc.rst

@@ -188,7 +188,7 @@ Projects from previous years
 ----------------------------
 
 * `Improved Search And Search As You Type (2019) <https://blog.readthedocs.com/search-improvements/>`_
-* `Building Docs For Pull Requests(2019) <https://blog.readthedocs.com/building-docs-for-pull-requests/>`_
+* `Building Docs For Pull Requests (2019) <https://blog.readthedocs.com/building-docs-for-pull-requests/>`_
 * `Search Improvement (2018) <https://blog.readthedocs.com/improved-search-and-search-as-you-type/>`_
 
 Thanks