Update nuspec to use license file

- Also remove summary as it's deprecated.

nanoFramework.Tools.DebugLibrary.Net/nanoFramework.Tools.DebugLibrary.Net.nuspec

@@ -7,16 +7,14 @@
     <authors>nanoFramework project contributors</authors>
     <owners>nanoFramework project contributors</owners>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <license type="expression">Apache-2.0</license>
+    <license type="file">LICENSE.md</license>
     <projectUrl>https://github.com/nanoframework/nf-debugger</projectUrl>
-    <iconUrl>https://secure.gravatar.com/avatar/97d0e092247f0716db6d4b47b7d1d1ad</iconUrl>
     <icon>images\nf-logo.png</icon>
     <repository type="git" url="https://github.com/nanoframework/nf-debugger" commit="$commit$" />
     <copyright>Copyright (c) .NET Foundation and Contributors</copyright>
     <description>This .NET library provides a debug client for nanoFramework devices using USB or Serial connection to a board.</description>
     <releaseNotes>This package provides the .NET version of the debug library.&#10;For UWP look for the respective Nuget package.
     </releaseNotes>
-    <summary>This .NET library provides a debug client for nanoFramework</summary>
     <tags>nanoFramework C# csharp netmf netnf</tags>
     <dependencies>
       <dependency id="Fody" version="4.2.1" />
@@ -31,5 +29,6 @@
   <files>
       <file src="bin\Release\nanoFramework.Tools.Debugger.Net.dll" target="lib/net472" />
       <file src="..\nf-logo.png" target="images\" />
+      <file src="..\LICENSE.md" target="" />
   </files>
 </package>

nanoFramework.Tools.DebugLibrary.UWP/nanoFramework.Tools.DebugLibrary.UWP.nuspec

@@ -7,16 +7,14 @@
     <authors>nanoFramework project contributors</authors>
     <owners>nanoFramework project contributors</owners>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <license type="expression">Apache-2.0</license>
+    <license type="file">LICENSE.md</license>
     <projectUrl>https://github.com/nanoframework/nf-debugger</projectUrl>
-    <iconUrl>https://secure.gravatar.com/avatar/97d0e092247f0716db6d4b47b7d1d1ad</iconUrl>
     <icon>images\nf-logo.png</icon>
     <repository type="git" url="https://github.com/nanoframework/nf-debugger" commit="$commit$" />
     <copyright>Copyright (c) .NET Foundation and Contributors</copyright>
     <description>This UWP library provides a debug client for nanoFramework devices using USB or Serial connection to a board.</description>
     <releaseNotes>This package provides the UWP version of the debug library.&#10;For .NET look for the respective Nuget package.
     </releaseNotes>
-    <summary>This UWP library provides a debug client for nanoFramework</summary>
     <tags>nanoFramework C# csharp netmf netnf</tags>
     <dependencies>
       <dependency id="Fody" version="4.2.1" />
@@ -31,5 +29,6 @@
   <files>
       <file src="bin\Release\nanoFramework.Tools.Debugger.UWP.dll" target="lib/net472" />
       <file src="..\nf-logo.png" target="images\" />
+      <file src="..\LICENSE.md" target="" />
   </files>
 </package>