Merge pull request #144 from jiangyinzuo/patch-1

docs: fix costom commands vim_ai#AIRun()

doc/vim-ai.txt

@@ -268,6 +268,7 @@ To create custom commands, call `AIRun`, `AIEditRun` and `AIChatRun` functions:
 
   " custom command suggesting git commit message, takes no arguments
   function! AIPromptCommitMessageFn()
+    let l:range = 0
     let l:diff = system('git diff --staged')
     let l:prompt = "generate a short commit message from the diff below:\n" . l:diff
     let l:config = {
@@ -278,7 +279,7 @@ To create custom commands, call `AIRun`, `AIEditRun` and `AIChatRun` functions:
     \    "temperature": 1,
     \  },
     \}
-    call vim_ai#AIRun(l:config, l:prompt)
+    call vim_ai#AIRun(l:range, l:config, l:prompt)
   endfunction
   command! AIPromptCommitMessage call AIPromptCommitMessageFn(range)