Add activate before dialog
Fixes an edge case where the frontmost app can loose focus because of
an applescript diolog that preceeds it.
Also added a newline at the end of the file.
Update README.md

Update readme script code
Merge pull request #4 from tbunnyman/activate

Added Activate before dialog
README.md: Markdown syntax issue- fenced code blocks must have triple tick (```) on separate line