Update package.nuspec

Updated the project's site's URL

Author: Arash-Sabet

src/package.nuspec

@@ -7,7 +7,7 @@
     <authors>Arash Sabet</authors>
     <owners>Umplify Technologies Inc.</owners>
     <licenseUrl>https://github.com/Umplify/xunit-dependency-injection/blob/main/LICENSE</licenseUrl>
-    <projectUrl>https://github.com/Umplify/xunit-dependency-injection</projectUrl>
+    <projectUrl>https://umplify.github.io/xunit-dependency-injection/</projectUrl>
     <iconUrl>http://umplify.com/wp-content/uploads/2017/11/umplify_logo.png</iconUrl>
     <requireLicenseAcceptance>true</requireLicenseAcceptance>
     <description>This package contains the necessary classes and features to leverage Xunit's fixture class for Microsoft dependency inection framework.</description>