Chore: deprecated rule links in readme.md

fixes vuejs#176

Author: armano2

tools/update-rules.js

@@ -75,7 +75,7 @@ ${
     .map(entry => {
       const name = entry[0]
       const meta = entry[1].meta
-      const link = `[${name}](./rules/${name}.md)`
+      const link = `[${name}](./docs/rules${name}.md)`
       const replacedBy = (meta.docs.replacedBy || []).map(id => `[${id}](./rules/${id}.md)`).join(', ') || '(no replacement)'
       return `| ${link} | ${replacedBy} |`
     })