Apply suggestions from code review

Co-authored-by: silverwind <[email protected]>

Author: wxiaoguang

custom/conf/app.example.ini

@@ -700,10 +700,9 @@ LEVEL = Info
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;; Git config options
-;; This section only does "set" config, a removed config key from this section won't be removed from git config automatically
+;; This section only does "set" config, a removed config key from this section won't be removed from git config automatically. The format is `some.configKey = value`.
 ;[git.config]
 ;diff.algorithm = histogram
-;other.config-key = ...
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

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

@@ -1071,10 +1071,9 @@ Default templates for project boards:
 ### Git - Config options (`git.config`)
 
 The key/value pairs in this section will be used as git config.
-This section only does "set" config, a removed config key from this section won't be removed from git config automatically.
+This section only does "set" config, a removed config key from this section won't be removed from git config automatically. The format is `some.configKey = value`.
 
 - `diff.algorithm`: **histogram**
-- `other.config-key`: ...
 
 ## Metrics (`metrics`)