checksemicolon is now CheckLineEnding and checks for commas also

vimrc

@@ -164,7 +164,7 @@ nnoremap <leader>ry diw"0P
 
 inoremap jk <esc>
 
-nnoremap A :call Checksemicolon()<CR>
+nnoremap A :call CheckLineEnding()<CR>
 
 nnoremap <leader>co :!clear;
 
@@ -366,9 +366,9 @@ augroup END
 
 " #functions
 
-function! Checksemicolon()
+function! CheckLineEnding()
   :normal $
-  if getline('.')[col('.')-1] == ';'
+  if getline('.')[col('.')-1] == ';' || getline('.')[col('.')-1] == ','
     :startinsert
   else
     :startinsert!