GIthub Login (#578)

* Add files via upload

* Create linode-setup.md

* Create cloudflare-setup.md

* Update cloudflare-setup.md

* Delete 4-linode.png

* Delete 3-linode.png

* Add files via upload

* Add files via upload

* Update cloudflare-setup.md

* Update linode-setup.md

* Rename cloudflare-setup.md to cloudflare.md

* Rename linode-setup.md to linode.md

* Update mkdocs.yml

* Update cloudflare.md

* Update linode.md

* Update README.md

* Update README.md

* Update linode.md

sentence in Italian

* v1

The frontend has been completed, along with the .env variables.

However, there is an issue of infinite loading thereafter.

* Fix email and remove deprecated GitHub passport

* Update user_auth_system.md

add How to Set Up a Github Authentication

* Update .env.example

Improved the comment above the GitHub client ID and secret.

* Update user_auth_system.md

* Update package.json

* Remove unnecessary passport GitHub package

* fixed conflicts

 fixed conflicts between Berry-13:main and danny-avila:main

in api/server/index.js 45:54

* Delete e -i HEAD~2

.env.example

@@ -218,6 +218,14 @@ OPENID_IMAGE_URL=
 # Delay is in millisecond e.g. 7 days is 1000*60*60*24*7
 SESSION_EXPIRY=(1000 * 60 * 60 * 24) * 7
 
+# Github:
+# Get the Client ID and Secret from your Github Application
+# Add your Github Client ID and Client Secret here:
+
+GITHUB_CLIENT_ID=
+GITHUB_CLIENT_SECRET=
+GITHUB_CALLBACK_URL=/oauth/github/callback
+
 ###########################
 # Application Domains
 ###########################