fix document

custom/conf/app.example.ini

@@ -379,15 +379,17 @@ LOG_SQL = false ; if unset defaults to true
 ;; Whether the installer is disabled (set to true to disable the installer)
 INSTALL_LOCK = false
 ;;
-;; Global secret key that will be used - if blank will be regenerated.
+;; Global secret key that will be used
+;; This key is VERY IMPORTANT. If you lose it, the data encrypted by it (like 2FA secret) can't be decrypted anymore.
 SECRET_KEY =
 ;;
-;; Secret used to validate communication within Gitea binary.
-INTERNAL_TOKEN=
-;;
 ;; Alternative location to specify secret key, instead of this file; you cannot specify both this and SECRET_KEY, and must pick one
+;; This key is VERY IMPORTANT. If you lose it, the data encrypted by it (like 2FA secret) can't be decrypted anymore.
 ;SECRET_KEY_URI = file:/etc/gitea/secret_key
 ;;
+;; Secret used to validate communication within Gitea binary.
+INTERNAL_TOKEN=
+;;
 ;; Alternative location to specify internal token, instead of this file; you cannot specify both this and INTERNAL_TOKEN, and must pick one
 ;INTERNAL_TOKEN_URI = file:/etc/gitea/internal_token
 ;;

docs/content/doc/advanced/config-cheat-sheet.en-us.md

@@ -494,7 +494,8 @@ Certain queues have defaults that override the defaults set in `[queue]` (this o
 ## Security (`security`)
 
 - `INSTALL_LOCK`: **false**: Controls access to the installation page. When set to "true", the installation page is not accessible.
-- `SECRET_KEY`: **\<random at every install\>**: Global secret key. This should be changed.
+- `SECRET_KEY`: **\<random at every install\>**: Global secret key. This key is VERY IMPORTANT, if you lost it, the data encrypted by it (like 2FA secret) can't be decrypted anymore.
+- `SECRET_KEY_URI`: **<empty>**: Instead of defining SECRET_KEY, this option can be used to use the key stored in a file (example value: `file:/etc/gitea/secret_token`). It shouldn't be lost like SECRET_KEY.
 - `LOGIN_REMEMBER_DAYS`: **7**: Cookie lifetime, in days.
 - `COOKIE_USERNAME`: **gitea\_awesome**: Name of the cookie used to store the current username.
 - `COOKIE_REMEMBER_NAME`: **gitea\_incredible**: Name of cookie used to store authentication
@@ -520,7 +521,7 @@ Certain queues have defaults that override the defaults set in `[queue]` (this o
 - `ONLY_ALLOW_PUSH_IF_GITEA_ENVIRONMENT_SET`: **true**: Set to `false` to allow local users to push to gitea-repositories without setting up the Gitea environment. This is not recommended and if you want local users to push to Gitea repositories you should set the environment appropriately.
 - `IMPORT_LOCAL_PATHS`: **false**: Set to `false` to prevent all users (including admin) from importing local path on server.
 - `INTERNAL_TOKEN`: **\<random at every install if no uri set\>**: Secret used to validate communication within Gitea binary.
-- `INTERNAL_TOKEN_URI`: **<empty>**: Instead of defining internal token in the configuration, this configuration option can be used to give Gitea a path to a file that contains the internal token (example value: `file:/etc/gitea/internal_token`)
+- `INTERNAL_TOKEN_URI`: **<empty>**: Instead of defining INTERNAL_TOKEN in the configuration, this configuration option can be used to give Gitea a path to a file that contains the internal token (example value: `file:/etc/gitea/internal_token`)
 - `PASSWORD_HASH_ALGO`: **pbkdf2**: The hash algorithm to use \[argon2, pbkdf2, scrypt, bcrypt\], argon2 will spend more memory than others.
 - `CSRF_COOKIE_HTTP_ONLY`: **true**: Set false to allow JavaScript to read CSRF cookie.
 - `MIN_PASSWORD_LENGTH`: **6**: Minimum password length for new users.