correction typo

git_tutorial.md

@@ -345,7 +345,7 @@ Automatic merge failed; fix conflicts and then commit the result.
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ {.bash .numberLines}
 [malaspor@perka tutorial]$ git rm premierfichier.c 
 rm 'premierfichier.c'
-[malaspor@perka tutorial]$ git st
+[malaspor@perka tutorial]$ git status
 On branch master
 Your branch is up to date with 'origin/master'.