Update nuspec for release of 3.0.0-preview.2

Author: milkshakeuk

build/nHapi.v2.nuspec

@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2013/05/nuspec.xsd">
     <metadata>
         <id>nHapi</id>
-        <version>3.0.0-preview.1</version>
+        <version>3.0.0-preview.2</version>
         <authors>Chad Chenoweth, Duane Edwards</authors>
         <licenseUrl>http://www.mozilla.org/MPL/2.0/</licenseUrl>
         <projectUrl>https://github.com/duaneedwards/nHapi</projectUrl>
@@ -13,7 +13,7 @@
 NHapi allows Microsoft .NET developers to easily use an HL7 2.x object model. This object model allows for parsing and encoding HL7 2.x data to/from Pipe Delimited or XML formats. A very handy program for use in the health care industry.
 
 This project is NOT affiliated with the HL7 organization. This software just conforms to the HL7 2.x specifications.</description>
-        <releaseNotes>Preview support for netstandrd2.0</releaseNotes>
+        <releaseNotes>https://github.com/nHapiNET/nHapi/releases/tag/v3.0.0-preview.2</releaseNotes>
     <dependencies>
         <group targetFramework=".NETStandard2.0">
             <dependency id="NETStandard.Library" version="2.0.0" />