Merge pull request #11 from Tweoss/typo

Fix typo in command from 'paralellize' to 'parallelize'

jj_tui/bin/graph_commands.ml

···
           (fun () ->
             PromptThen
               ( "list commits to parallelize"
-              , fun x -> Cmd ([ "paralellize" ] @ (x |> String.split_on_char ' ')) ))
+              , fun x -> Cmd ([ "parallelize" ] @ (x |> String.split_on_char ' ')) ))
       }
     ; {
         id = "abandon"