Set the project, named sky-walking 3

README.md

@@ -3,7 +3,7 @@ Sky Walking | [中文](https://github.com/wu-sheng/sky-walking/wiki/sky-walking-
 
 <img src="https://sky-walking.github.io/page-resources/3.0/skywalking.png" alt="Sky Walking logo" height="90px" align="right" />
 
-**SkyWalking 3.x**: APM for Distributed Systems, also known Distributed Tracing System.
+**SkyWalking 3**: APM for Distributed Systems, also known Distributed Tracing System.
 
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