Update README

README.md

@@ -33,11 +33,11 @@ install [gksu](http://www.nongnu.org/gksu),
 
 After that, run the following command to install in user directory:
 
-    $ curl -L http://github.com/xuhdev/nautilus-edit-with-vim/raw/master/nautilus-edit-with-vim.py >~/.local/share/nautilus-python/extensions/nautilus-edit-with-vim.py
+    curl -L http://github.com/xuhdev/nautilus-edit-with-vim/raw/master/nautilus-edit-with-vim.py >~/.local/share/nautilus-python/extensions/nautilus-edit-with-vim.py
 
 Or to install system-widely:
 
-    # curl -L http://github.com/xuhdev/nautilus-edit-with-vim/raw/master/nautilus-edit-with-vim.py >$XDG_DATA_DIR/share/nautilus-python/extensions/nautilus-edit-with-vim.py
+    sudo curl -L http://github.com/xuhdev/nautilus-edit-with-vim/raw/master/nautilus-edit-with-vim.py >$XDG_DATA_DIR/share/nautilus-python/extensions/nautilus-edit-with-vim.py
 
 Then restart nautilus(execute "nautilus -q") and try to right click on the
 file(s) you want to edit, you will see the changes in the context menu("Edit