[en] small format fixes (#950)

Author: Jinjiang

docs/en/actions.md

@@ -108,7 +108,7 @@ export default {
   methods: {
     ...mapActions([
       'increment', // map `this.increment()` to `this.$store.dispatch('increment')`
-      
+
       // `mapActions` also supports payloads:
       'incrementBy' // map `this.incrementBy(amount)` to `this.$store.dispatch('incrementBy', amount)`
     ]),

docs/en/forms.md

@@ -58,4 +58,3 @@ computed: {
   }
 }
 ```
-

docs/en/getters.md

@@ -78,7 +78,6 @@ getters: {
 store.getters.getTodoById(2) // -> { id: 2, text: '...', done: false }
 ```
 
-
 ### The `mapGetters` Helper
 
 The `mapGetters` helper simply maps store getters to local computed properties:

docs/en/mutations.md

@@ -48,6 +48,7 @@ mutations: {
   }
 }
 ```
+
 ``` js
 store.commit('increment', {
   amount: 10
@@ -147,7 +148,7 @@ export default {
   methods: {
     ...mapMutations([
       'increment', // map `this.increment()` to `this.$store.commit('increment')`
-      
+
       // `mapMutations` also supports payloads:
       'incrementBy' // map `this.incrementBy(amount)` to `this.$store.commit('incrementBy', amount)`
     ]),