added description header field

docs/auth/add-auth-provider.md

@@ -1,6 +1,7 @@
 ---
 id: add-auth-provider
 title: Adding authentication providers
+description: Documentation on Adding authentication providers
 ---
 
 ## Passport

docs/auth/auth-backend-classes.md

@@ -1,6 +1,7 @@
 ---
 id: auth-backend-classes
 title: Auth backend classes
+description: Documentation on Auth backend classes
 ---
 
 ## How Does Authentication Work?

docs/auth/auth-backend.md

@@ -1,6 +1,7 @@
 ---
 id: auth-backend
 title: Auth backend
+description: Documentation on Auth backend
 ---
 
 ## TODO

docs/auth/glossary.md

@@ -1,6 +1,7 @@
 ---
 id: glossary
 title: Glossary
+description: All Glossaries related to auth
 ---
 
 - **Popup** - A separate browser window opened on top of the previous one.

docs/auth/index.md

@@ -1,6 +1,7 @@
 ---
 id: index
 title: User Authentication and Authorization in Backstage
+description: Documentation on User Authentication and Authorization in Backstage
 ---
 
 ## Summary

docs/auth/oauth.md

@@ -1,6 +1,8 @@
 ---
 id: oauth
 title: OAuth and OpenID Connect
+description: This section describes how Backstage allows plugins to request OAuth Access Tokens and OpenID Connect ID Tokens on behalf of the user, to be used for auth
+to various third party APIs.
 ---
 
 This section describes how Backstage allows plugins to request OAuth Access