Update docs version configuration

Author: ujibang

_config.yml

@@ -10,7 +10,7 @@ defaults:
   - scope:
       path: "docs"
     values:
-      docs_version: 8
+      docs_version: 9
   - scope:
       path: "docs/v3"
     values:
@@ -37,9 +37,9 @@ defaults:
       docs_version: 7
       sitemap: false
   - scope:
-      path: "docs/v9"
+      path: "docs/v8"
     values:
-      docs_version: 9
+      docs_version: 8
       sitemap: false
 encoding: UTF-8
 email: info@softinstigate.com