chore: update status from alpha to beta (#848)

Outpox · yyx990803 · commit f2e2f2e84552 · 2018-02-16T22:54:01.000+01:00
diff --git a/README.md b/README.md
@@ -2,7 +2,7 @@
 
 > This is the branch for `@vue/cli` 3.0.
 
-## Status: alpha
+## Status: beta
 
 Certain combinations of plugins may not work properly, and things may break until we reach beta phase. Do not use in production yet unless you are adventurous.
 
