fix: update Supabase Auth self hosting docs (#11116)

* initial commit

* feat: add variables from config.toml

* fix: revert to describing config.toml

Co-authored-by: joel@joellee.org <joel@joellee.org>

spec/gotrue_v1_config.yaml

@@ -11,11 +11,9 @@ info:
   title: 'GoTrue' # {string} A readable name.
   source: 'https://github.com/supabase/gotrue' # {string} Where developers can find the source code.
   bugs: 'https://github.com/supabase/gotrue/issues' # {string} Where developers can file bugs.
-  spec: 'https://github.com/supabase/supabase/blob/master/web/spec/cli_config_001.yml' # {string} Where developers can find this spec (to link directly in the docs).
+  spec: 'https://github.com/supabase/supabase/blob/master/spec/gotrue_v1_config.yaml' # {string} Where developers can find this spec (to link directly in the docs).
   description: |
-    A `config.toml` file is generated after running `supabase init`.
-
-    This file is located in the `supabase` folder under `supabase/config.toml`.
+    A `config.toml` file is generated after running `supabase init`. This file is located in the `supabase` folder under `supabase/config.toml`.
   tags:
     - id: general
       title: General
@@ -30,3 +28,52 @@ parameters:
     # default: '5432'
     description: |
       A string used to distinguish different Supabase projects on the same host. Defaults to the working directory name when running `supabase init`.
+  - id: 'GOTRUE_EXTERNAL_GITHUB' # {string} A unique identifier for this param.
+    title: 'auth.external.github' # {string} Any name.
+    tags: ['general'] # {string[]} These tags are useful for grouping parameters
+    required: true
+    # default: '5432'
+    description: |
+      Describes whether the Github provider is enabled or not.
+  - id: 'GOTRUE_SITE_URL' # {string} A unique identifier for this param.
+    title: 'auth.site_url' # {string} Any name.
+    tags: ['general'] # {string[]} These tags are useful for grouping parameters
+    required: true
+    description: |
+     The base URL of your website. Used as an allow-list for redirects and for constructing URLs used in emails.
+  - id: 'GOTRUE_URI_ALLOW_LIST' # {string} A unique identifier for this param.
+    title: 'auth.additional_redirect_urls' # {string} Any name.
+    tags: ['general'] # {string[]} These tags are useful for grouping parameters
+    required: true
+    description: |
+      A list of *exact* URLs that auth providers are permitted to redirect to post authentication.
+  - id: 'GOTRUE_JWT_EXP' # {string} A unique identifier for this param.
+    title: 'auth.jwt_expiry' # {string} Any name.
+    tags: ['general'] # {string[]} These tags are useful for grouping parameters
+    required: true
+    description: |
+      How long tokens are valid for, in seconds. Defaults to 3600 (1 hour), maximum 604,800 seconds (one week).
+  - id: 'GOTRUE_DISABLE_SIGNUP' # {string} A unique identifier for this param.
+    title: 'auth.enable_signup' # {string} Any name.
+    tags: ['general'] # {string[]} These tags are useful for grouping parameters
+    required: true
+    description: |
+      Allow/disallow new user signups to your project.
+  - id: 'GOTRUE_EXTERNAL_EMAIL_ENABLED' # {string} A unique identifier for this param.
+    title: 'auth.email.enable_signup' # {string} Any name.
+    tags: ['general', 'email'] # {string[]} These tags are useful for grouping parameters
+    required: true
+    description: |
+      Allow/disallow new user signups via email to your project.
+  - id: 'GOTRUE_MAILER_SECURE_EMAIL_CHANGE_ENABLED' # {string} A unique identifier for this param.
+    title: 'auth.email.double_confirm_changes' # {string} Any name.
+    tags: ['general', 'email'] # {string[]} These tags are useful for grouping parameters
+    required: true
+    description: |
+      If enabled, a user will be required to confirm any email change on both the old, and new email addresses. If disabled, only the new email is required to confirm.
+  - id: 'GOTRUE_MAILER_AUTOCONFIRM' # {string} A unique identifier for this param.
+    title: 'auth.email.enable_confirmations' # {string} Any name.
+    tags: ['general', 'email'] # {string[]} These tags are useful for grouping parameters
+    required: true
+    description: |
+      If enabled, users need to confirm their email address before signing in.