Minor edits to projects page

- Wrap lines.
- Added link to Sitepoint article by @AndrewCarterUK
- Move emphasis into link text (will still render correctly, and easier to
  determine where the link is)

Author: weierophinney

doc/book/expressive-projects.md

@@ -1,13 +1,16 @@
 # Projects powered by zend-expressive
 
-zend-expressive can be used for anything. Here are some projects, tutorials and the related source code. Have a look around and see how others have used zend-expressive.
+zend-expressive can be used for anything. Here are some projects, tutorials and
+the related source code. Have a look around and see how others have used
+zend-expressive.
 
 ## Sample Code & Tutorials
-- zend-expressive tutorial - *[source](https://github.com/RalfEggert/zend-expressive-tutorial)*
-- [AstroSplash](http://astrosplash.com/) - *[source](https://github.com/AndrewCarterUK/AstroSplash)*
-- [php-ddd-cargo-sample](https://codeliner.github.io/php-ddd-cargo-sample/) - *[source](https://github.com/codeliner/php-ddd-cargo-sample)*
+- Expressive Tutorial (WIP) - [*source*](https://github.com/RalfEggert/zend-expressive-tutorial)
+- [AstroSplash](http://astrosplash.com/) - [*source*](https://github.com/AndrewCarterUK/AstroSplash)
+  (Also, read the [related article on sitepoint](http://www.sitepoint.com/build-nasa-photo-gallery-zend-expressive/))
+- [php-ddd-cargo-sample](https://codeliner.github.io/php-ddd-cargo-sample/) - [*source*](https://github.com/codeliner/php-ddd-cargo-sample)
 
 ## Personal Sites
-- [mwop.net](https://mwop.net/) - *[source](https://github.com/weierophinney/mwop.net)*
-- [xtreamwayz.com](https://xtreamwayz.com/) - *[source](https://github.com/xtreamwayz/xtreamwayz.com)*
-- [alejandrocelaya.com](http://www.alejandrocelaya.com/) - *[source](https://github.com/acelaya/website-expressive)*
+- [mwop.net](https://mwop.net/) - [*source*](https://github.com/weierophinney/mwop.net)
+- [xtreamwayz.com](https://xtreamwayz.com/) - [*source*](https://github.com/xtreamwayz/xtreamwayz.com)
+- [alejandrocelaya.com](http://www.alejandrocelaya.com/) - [*source*](https://github.com/acelaya/website-expressive)