chore: add gh to navigation

Author: almeidabbm

docs.json

@@ -220,6 +220,7 @@
                 "group": "Customize deployment",
                 "pages": [
                   "self-host/customize-deployment/configure-a-slack-app-for-lightdash",
+                  "self-host/customize-deployment/configure-github-for-lightdash",
                   "self-host/customize-deployment/configure-lightdash-to-use-an-external-database",
                   "self-host/customize-deployment/configure-lightdash-to-use-external-object-storage",
                   "self-host/customize-deployment/configure-logging-for-lightdash",

self-host/customize-deployment/configure-github-for-lightdash.mdx

@@ -1,6 +1,5 @@
 ---
-title: "Configure Github integration for self-hosted Lightdash"
-description: "Description of your new file."
+title: "Configure a Github integration for self-hosted Lightdash"
 sidebarTitle: "Github Integration"
 ---