Format; add gerbil config notes

packages/docusaurus/docs/03-Pangolin/02-Configuration/02-config.md

@@ -5,6 +5,7 @@ Pangolin is configured using a `config.yml` file. The file is expected to be mou
 ## Sections
 
 ### app
+
 -   `base_url`: string
     -   Example: `https://example.com` or `https://proxy.example.com`
     -   The url where the application is hosted. This is used for many things, including generating links, and determing the root domain for cookies, etc.
@@ -19,6 +20,7 @@ Pangolin is configured using a `config.yml` file. The file is expected to be mou
         -   Max files: 7 days
 
 ### server
+
 -   `external_port`: int
     -   The port the external facing (public) API will listen on.
 -   `internal_port`: int
@@ -41,6 +43,7 @@ Pangolin is configured using a `config.yml` file. The file is expected to be mou
     -   Cookies will be set for the base domain of the `base_url` config.
 
 ### traefik
+
 -   `cert_resolver`: string
     -   Example: `letsencrypt`
     -   The name of the Traefik certificate resolver. This must match the name of the resolver in the Traefik configuration.
@@ -55,8 +58,19 @@ Pangolin is configured using a `config.yml` file. The file is expected to be mou
     -   Before setting this to `true`, please see the docs for setting up wildcard certificates with Let's Encrypt, <a href="/Pangolin/wildcard-certs">here</a>.
 
 ### gerbil
+    - `start_port`: int
+      - This is the starting port for Wireguard tunnels that new Gerbil exit nodes will use and increment as they register with Pangolin. Advised to choose a base of a range with no conflicts.
+    - `base_endpoint`: string
+      - This is the domain name automatically included in Newt and Wireguard config for tunnel connections.
+    - `use_subdomain`: boolean
+      - If set to true, new Gerbil exit nodes will be assigned a unique subdomain off of the base domain. Advised to keep this to false.
+    - `subnet_group`: string
+      - IP address CIDR from which to choose smaller CIDR ranges for new Gerbil exit node registrations. Each "Gerbil" gets a subnet from this range.
+    - `block_size`: int
+      - The block size of the smaller CIDR ranges for new Gerbil exit node registrations.
 
 ### rate_limits
+
 -   `global`: object
     -   The global rate limit configuration for all requests to the external Pangolin API.
     -   `window_minutes`: int
@@ -67,6 +81,7 @@ Pangolin is configured using a `config.yml` file. The file is expected to be mou
         -   The maximum number of requests allowed in the window.
 
 ### email (optional)
+
 -   `smtp_host`: string
     -   The SMTP host for sending emails.
 -   `smtp_port`: int
@@ -80,6 +95,7 @@ Pangolin is configured using a `config.yml` file. The file is expected to be mou
     -   The address to send emails from. This can be any email address, but it is recommended to use a no-reply address.
 
 ### users
+
 -   `server_admin`: object
     -   The server admin who can always create new organizations. This user will always be created on startup.
     -   `email`: string
@@ -95,6 +111,7 @@ Pangolin is configured using a `config.yml` file. The file is expected to be mou
             -   At least one special character
 
 ### flags
+
 -   `require_email_verification`: boolean
     -   Whether to require email verification for new users. If set to `true`, new users will need to verify their email address before they can log in.
     -   Only turn this on if you have email configured.
@@ -134,8 +151,8 @@ gerbil:
     start_port: 51820
     base_endpoint: example.com
     use_subdomain: false
-    block_size: 16
     subnet_group: 10.0.0.0/8
+    block_size: 16
 
 rate_limits:
     global: