update to v2.0.0

Author: LewdHuTao

pom.xml

@@ -10,7 +10,7 @@
     </parent>
     <groupId>com.example</groupId>
     <artifactId>lyrics_api_v2</artifactId>
-    <version>0.0.1-SNAPSHOT</version>
+    <version>2.0.0</version>
     <name>lyrics_api_v2</name>
     <description>lyrics_api_v2</description>