Work CI-CD

- Fix assembly name in nuspec.

***NO_CI***

Author: josesimoes

nanoFramework.Graphics.nuspec

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <package xmlns="http://schemas.microsoft.com/packaging/2012/06/nuspec.xsd">
   <metadata>
     <id>nanoFramework.Graphics</id>
@@ -16,7 +16,7 @@
     <repository type="git" url="https://github.com/nanoframework/nanoFramework.Graphics" commit="$commit$" />
     <copyright>Copyright (c) .NET Foundation and Contributors</copyright>
     <description>This package includes the nanoFramework.Graphics assembly for .NET nanoFramework C# projects..
-This package requires a target with System.Math v$nativeVersion$ (checksum $checksum$).</description>
+This package requires a target with System.Graphics v$nativeVersion$ (checksum $checksum$).</description>
     <tags>nanoFramework C# csharp netmf netnf nanoFramework.Graphics</tags>
     <dependencies>
       <dependency id="nanoFramework.CoreLibrary" version="1.15.5" />