fancy-ctrl-z: fix "hurt sme" typo (#7613)

plugins/fancy-ctrl-z/README.md

 # Use Ctrl-Z to switch back to Vim
 
-I frequently need to execute random command in my shell. To achieve it I pause 
+I frequently need to execute random commands in my shell. To achieve it I pause 
 Vim by pressing Ctrl-z, type command and press fg<Enter> to switch back to Vim.
-The fg part really hurt sme. I just wanted to hit Ctrl-z once again to get back 
+The fg part really hurts me. I just wanted to hit Ctrl-z once again to get back 
 to Vim. I could not find a solution, so I developed one on my own that 
-works wonderfully with ZSH
+works wonderfully with ZSH.
 
 Source: http://sheerun.net/2014/03/21/how-to-boost-your-vim-productivity/