migration doc updated

README.md

@@ -582,13 +582,19 @@ $ cd <dotfiles-directory>
 ## get latest version of the submodule
 $ git submodule foreach git pull origin master
 
-## and update it upstream
+## and stage the changes
 $ git add dotdrop
 $ git commit -m 'update dotdrop'
-$ git push
 
 ## update the bash script wrapper
 $ ./dotdrop/bootstrap.sh
+
+## and stage the change to the dotdrop.sh script
+$ git add dotdrop.sh
+$ git commit -m 'update dotdrop.sh'
+
+## and finally push the changes upstream
+$ git push
 ```
 
 Otherwise, simply install it from pypi as explained [above](#with-pypi)

dotdrop/dotdrop.py

@@ -23,9 +23,12 @@ First get the latest version of dotdrop:
     $ git submodule foreach git pull origin master
     $ git add dotdrop
     $ git commit -m 'update dotdrop'
-    $ git push
 And then re-run the bootstrap script to update \"dotdrop.sh\":
     $ ./dotdrop/bootstrap.sh
+    $ git add dotdrop.sh
+    $ git commit -m 'update dotdrop.sh'
+And finally push the changes upstream
+    $ git push
 
 For more, see https://github.com/deadc0de6/dotdrop#migrate-from-submodule
 '''