docs(v2): remove duplicate line on v1 docs (facebook#4531)

loozhengyuan · web-flow · commit fe2c6b892425 · 2021-03-30T11:10:39.000+02:00
diff --git a/README.md b/README.md
@@ -23,8 +23,6 @@
 
 > Docusaurus v1 doc is available at [v1.docusaurus.io](https://v1.docusaurus.io)
 
-> Docusaurus v1 doc is available at [v1.docusaurus.io](https://v1.docusaurus.io)
-
 ## Introduction
 
 Docusaurus is a project for building, deploying, and maintaining open source project websites easily.
