Add shortcuts for python

vim/ftplugin/python.vim

@@ -10,4 +10,7 @@ let g:ale_fixers['python'] = ['black']
 let g:ale_fix_on_save = 1
 let g:pymode_run_bind = '<F5>'
 
+" Make a f-string from normal string
 nmap <F8> F"if<ESC>A
+" remap pydocstring
+nmap <silent> <leader><C-i> <Plug>(pydocstring)