add gitea initial setup to readme

README.md

@@ -52,7 +52,7 @@ todo
 
 ### stalwart
 
-**first setup**
+**initial setup**
 
 1. server identity
     - server hostname: `mail.yaoi.dog`
@@ -101,7 +101,32 @@ todo
 
 ### gitea
 
-todo
+**initial setup**
+
+- database settings
+  - database type: `sqlite3`
+  - path: `/data/gitea/gitea.db`
+- general settings
+  - site title: `We cock. Dick. BALLING.`
+  - server domain: `git.yaoi.dog`
+  - ssh server port: `22`
+  - gitea base url: `https://git.yaoi.dog/`
+  - enable update checker: `true`
+- email settings
+  - smtp host: `mail.yaoi.dog`
+  - smtp port: `465`
+  - send email as: `"Gitea" <system@yaoi.dog>`
+  - smtp username: `system@yaoi.dog`
+  - smtp password: `<password>`
+  - enable email notifications: `true`
+- server and third-party service settings
+  - enable openid sign-in: `false`
+  - disable self-registration: `false`
+  - allow registration only through external services: `true`
+  - enable openid self-registration: `true`
+  - hidden email domain: `git.yaoi.dog`
+  - password hash algorithm: `argon2`
+
 
 ## backups