docs: fix minor grammatical issues

Author: ShayanTheNerd

docs/rules/no-async-in-computed-properties.md

@@ -12,8 +12,8 @@ since: v3.8.0
 
 - :gear: This rule is included in all of `"plugin:vue/essential"`, `*.configs["flat/essential"]`, `"plugin:vue/vue2-essential"`, `*.configs["flat/vue2-essential"]`, `"plugin:vue/strongly-recommended"`, `*.configs["flat/strongly-recommended"]`, `"plugin:vue/vue2-strongly-recommended"`, `*.configs["flat/vue2-strongly-recommended"]`, `"plugin:vue/recommended"`, `*.configs["flat/recommended"]`, `"plugin:vue/vue2-recommended"` and `*.configs["flat/vue2-recommended"]`.
 
-Computed properties and functions should be synchronous. Asynchronous actions inside them may not work as expected and can lead to an unexpected behaviour, that's why you should avoid them.
-If you need async computed properties you might want to consider using additional plugin [vue-async-computed]
+Computed properties and functions should be synchronous. Asynchronous actions inside them may not work as expected and can lead to unexpected behaviour; that's why you should avoid them.
+If you need async computed properties, you might want to consider using an additional plugin such as [vue-async-computed]
 
 ## :book: Rule Details