Rename Packages.md to packages.md

docs/new-extensibility-model/inside-the-sdk/packages.md

@@ -20,4 +20,4 @@ This package contains the build tooling, code generators that is necessary for e
 ## Microsoft.VisualStudio.Extensibility.Editor
 This package contains the editor related SDK APIs and utilities and is included as a dependency from `Microsoft.VisualStudio.Extensibility`. 
 
-In future previews, we may have similar nuget packages that are not included as a required dependency but can be added as needed to provide APIs for certain feature areas such as debugger, source control.
+In future previews, we may have similar nuget packages that are not included as a required dependency but can be added as needed to provide APIs for certain feature areas such as debugger, source control.