Remove parentheses describing the link

Just a suggested work around to use a hyphen.  
The problem is that the parentheses right after the [cloud service] is being treated as the url and overriding the definition for [cloud service]

Today in production:
```
<p>When you create an application and run it in Azure, the code and configuration together are called an Azure <a href="known as a *hosted service* in earlier Azure releases">cloud service</a>.
```
Merge pull request #2341 from dabutvin/patch-15

Remove parentheses describing the link