spelling: github

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>

README.md

@@ -89,6 +89,6 @@ information on how to report security vulnerabilities.
 
 | Section | Description |
 |-|-|
-| [Unstructured Community Github](https://github.com/Unstructured-IO/community) | Information about Unstructured.io community projects  |
-| [Unstructured Github](https://github.com/Unstructured-IO) | Unstructured.io open source repositories |
+| [Unstructured Community GitHub](https://github.com/Unstructured-IO/community) | Information about Unstructured.io community projects  |
+| [Unstructured GitHub](https://github.com/Unstructured-IO) | Unstructured.io open source repositories |
 | [Company Website](https://unstructured.io) | Unstructured.io product and company info |