vue/keyword-spacing 
Enforce consistent spacing before and after keywords in
<template>
- 🔧 The --fixoption on the command line can automatically fix some of the problems reported by this rule.
This rule is the same rule as @stylistic/keyword-spacing rule but it applies to the expressions in <template>.
This rule extends the rule that @stylistic/eslint-plugin has, but if @stylistic/eslint-plugin is not installed, this rule extracts and extends the same rule from ESLint core. However, if neither is found, the rule cannot be used.
📚 Further Reading 
🚀 Version 
This rule was introduced in eslint-plugin-vue v6.0.0
🔍 Implementation 
Taken with ❤️ from ESLint core