Moved description to single line

NuGet displays line breaks and white space, instead of compressing it. As such, the `<Description />` needs to be implemented on a single line.

Author: JeremyCaney

OnTopic.All/OnTopic.All.csproj

@@ -6,10 +6,7 @@
 
   <PropertyGroup>
     <AssemblyTitle>OnTopic Library Metapackage</AssemblyTitle>
-    <Description>
-      Includes all core packages associated with the OnTopic Library, excluding the OnTopic Editor. Reference this package as a
-      shorthand for establishing a reference to each of the individual packages.
-    </Description>
+    <Description>Includes all core packages associated with the OnTopic Library, excluding the OnTopic Editor. Reference this package as a shorthand for establishing a reference to each of the individual packages.</Description>
     <OutputPath>bin\$(Configuration)\</OutputPath>
   </PropertyGroup>