📝 docs(vuepress): updates

Author: kazupon

docs/rules/no-html-messages.md

@@ -56,8 +56,8 @@ new Vue({
 :+1: Examples of **correct** code for this rule:
 
 locale messages:
-// ✓ GOOD
 ```js
+// ✓ GOOD
 {
   "hello": "Hello! DIO!",
   "hi": "Hi! DIO!",
@@ -111,3 +111,12 @@ new Vue({
   // ...
 }).$mount('#app')
 ```
+
+## :mute: When Not To Use It
+
+If you are certain the localization message is trusted, you can disable this rule.
+
+## :books: Further reading
+
+- [XSS in Vue.js](https://blog.sqreen.io/xss-in-vue-js/)
+- [Analysis of a Supply Chain Attack](https://medium.com/@hkparker/analysis-of-a-supply-chain-attack-2bd8fa8286ac)

docs/rules/no-unused-keys.md

@@ -43,8 +43,8 @@ i18n.t('hello')
 :+1: Examples of **correct** code for this rule:
 
 locale messages:
-// ✓ GOOD
 ```js
+// ✓ GOOD
 {
   "hello": "Hello! DIO!",
   "hi": "Hi! DIO!"

docs/rules/no-v-html.md

@@ -60,7 +60,7 @@ localization codes:
 
 ## :mute: When Not To Use It
 
-If you are certain the content passed to `v-html` is sanitized HTML you can disable this rule.
+If you are certain the content passed to `v-html` is trusted HTML you can disable this rule.
 
 ## :books: Further reading