THRIFT-4990 Switch to .NET core 3.0
Client: netstsd
Patch: Jens Geyer

This closes #1909
diff --git a/test/netstd/README.md b/test/netstd/README.md
index ed728d1..8350728 100644
--- a/test/netstd/README.md
+++ b/test/netstd/README.md
@@ -1,12 +1,12 @@
 # Apache Thrift net-core-lib tests
 
-Tests for Thrift client library ported to Microsoft .Net Core 
+Tests for Thrift client library ported to Microsoft .NET Core 
 
 # Content
 - ThriftTest - tests for Thrift library 
 
 # Reused components 
-- NET Core Standard 1.6 (SDK 2.0.0)
+- NET Core SDK 3.0
 
 # How to build on Windows
 - Get Thrift IDL compiler executable, add to some folder and add path to this folder into PATH variable
@@ -15,6 +15,6 @@
 - Build with scripts
 
 # How to build on Unix
-- Ensure you have .NET Core 2.0.0 SDK installed or use the Ubuntu Xenial docker image
+- Ensure you have .NET Core 3.0 SDK installed or use the Ubuntu Xenial docker image
 - Follow common build practice for Thrift: bootstrap, configure, and make precross