Initial restructuring of documentation.

Author: benwaldie

Documentation/DependencyHells.md

@@ -1,11 +1,7 @@
 # Swift Package Manager Developer Docs
 
-This directory contains documentation on the engineering design decisions
-and internals of the Swift package manager. It is primarily focused at developers
-interested in working on the Swift package manager, but may also be useful to advanced users
-wanting to understand exactly how the package manager behaves.
+This directory contains documentation on the engineering design decisions and internals of the Swift package manager. It is primarily focused at developers interested in working on the Swift package manager, but may also be useful to advanced users wanting to understand exactly how the package manager behaves.
 
 * [Swift-based Manifest Format](SwiftBasedManifestFormat.md)
 
-  This document explains our motivation in choosing a Swift-based manifest format,
-  and the exact behavior we intend to support.
+This document explains our motivation in choosing a Swift-based manifest format, and the exact behavior we intend to support.