Add JSDoc to rule template (#1183)

Author: fisker

scripts/template/rule.js.jst

@@ -6,6 +6,7 @@ const messages = {
 	[MESSAGE_ID]: 'Prefer `{{replacement}}` over `{{value}}`.'
 };
 
+/** @param {import('eslint').Rule.RuleContext} context */
 const create = context => {
 	return {
 		Literal(node) {
@@ -20,6 +21,7 @@ const create = context => {
 					value: 'unicorn',
 					replacement: '🦄'
 				}<% if (fixableType) { %>,
+				/** @param {import('eslint').Rule.RuleFixer} fixer */
 				fix: fixer => fixer.replaceText(node, '\'🦄\'')<% } %>
 			});
 		}