Update Sprout.fsproj

Author: dlidstrom

Sprout.fsproj

@@ -11,7 +11,7 @@
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageReadmeFile>Readme.md</PackageReadmeFile>
     <PackageProjectUrl>https://github.com/dlidstrom/Sprout</PackageProjectUrl>
-    <PackageIcon>logo.png</PackageIcon>
+    <PackageIcon>sprout.png</PackageIcon>
     <Authors>Daniel Lidström</Authors>
     <DebugType>embedded</DebugType>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>