Improved readability by removing semicolon

The first sentence had an unnecessary semicolon which made the whole thing difficult to read.  The new syntax is not only easier to read but also more exciting.

starter/README.md

@@ -1,11 +1,11 @@
 # Welcome to React!
 
-You've just downloaded the React starter kit; congratulations!
+You've just downloaded the React starter kit...Congratulations!
 
 To begin, check out the `examples/` directory for a bunch of examples, or check out [Getting Started](http://facebook.github.io/react/docs/getting-started.html) for more information.
 
 In some browsers our examples won't work from the local file system; run `python -m SimpleHTTPServer` and visit `http://localhost:8000/` to view them.
 
 Want to start your own app? Just copy `examples/basic-jsx-external` and start hacking! Remember: before launching you'll want to precompile your JSX code as we do in `examples/basic-jsx-precompiled`; this requires doing `npm install -g react-tools` and then running our `jsx` tool. See [Getting Started](http://facebook.github.io/react/docs/getting-started.html) for more information.
 
-Happy hacking!
+Happy Hacking!