test: update message

azu · azu · commit a6544ec3a56f · 2020-10-24T16:01:16.000+09:00
diff --git a/README.md b/README.md
@@ -24,13 +24,11 @@
 
     npm install textlint-rule-no-dropping-the-ra
 
-textlint >= 5.0
-
 ## Usage
 
 Put "no-dropping-the-ra" to `.textlintrc`
 
-```js
+```json
 {
   "rules": {
     "no-dropping-the-ra": true
