docs: fix linting errors

Author: eddyerburgh

docs/en/api/wrapper-array/setComputed.md

@@ -19,8 +19,8 @@ import Bar from './Bar.vue'
 const wrapper = mount(Foo)
 const barArray = wrapper.findAll(Bar)
 
-barArray.setComputed({ 
-  computed1: 'new-computed1', 
+barArray.setComputed({
+  computed1: 'new-computed1',
   computed2: 'new-computed2'
 })
 ```

docs/en/api/wrapper/setComputed.md

@@ -17,24 +17,24 @@ import { expect } from 'chai'
 
 const wrapper = mount({
   template: '<div>{{ computed1 }} {{ computed2 }}</div>',
-  data() {
+  data () {
     return {
-      initial: 'initial',
-    };
+      initial: 'initial'
+    }
   },
   computed: {
-    computed1() { 
-      return this.initial 
-    },
-    computed2() { 
-      return this.initial 
+    computed1 () {
+      return this.initial
     },
+    computed2 () {
+      return this.initial
+    }
   }
 })
 
 expect(wrapper.html()).toBe('<div>initial initial</div>')
 
-wrapper.setComputed({ 
+wrapper.setComputed({
   computed1: 'new-computed1',
   computed2: 'new-computed2'
 })