Update README.md

Capitalization of GitHub

Author: mchammer01

Diff for: src/github-apps/README.md

@@ -3,7 +3,7 @@
 Our GitHub Apps pipeline creates autogenerated documentation for docs.github.com from the OpenAPI stored in the open-source repository [`github/rest-api-description`](https://github.com/github/rest-api-description).
 
 The pipeline is used to generate the data used on these pages:
-- [Endpoints available for Github App installation access tokens](https://docs.github.com/en/rest/authentication/endpoints-available-for-github-app-installation-access-tokens)
+- [Endpoints available for GitHub App installation access tokens](https://docs.github.com/en/rest/authentication/endpoints-available-for-github-app-installation-access-tokens)
 - [Endpoints available for GitHub App user access tokens](https://docs.github.com/en/rest/authentication/endpoints-available-for-github-app-user-access-tokens)
 - [Endpoints available for fine-grained personal access tokens](https://docs.github.com/en/rest/authentication/endpoints-available-for-fine-grained-personal-access-tokens)
 - [Permissions required for GitHub Apps](https://docs.github.com/en/rest/authentication/permissions-required-for-github-apps)