Super minor grammer fix (#756)

retzloff · ktsn · commit daac9b229ec3 · 2017-04-27T09:27:47.000+09:00
diff --git a/docs/en/state.md b/docs/en/state.md
@@ -81,7 +81,7 @@ export default {
 }
 ```
 
-We can also pass a string array to `mapState` when the name of mapped computed property is same as state sub tree name.
+We can also pass a string array to `mapState` when the name of a mapped computed property is same as a state sub tree name.
 
 ``` js
 computed: mapState([

Original file line number	Diff line number	Diff line change
`@@ -81,7 +81,7 @@ export default {`
`81`	`81`	`}`
`82`	`82`	```
`83`	`83`
`84`		-We can also pass a string array to `mapState` when the name of mapped computed property is same as state sub tree name.
	`84`	+We can also pass a string array to `mapState` when the name of a mapped computed property is same as a state sub tree name.
`85`	`85`
`86`	`86`	``` js
`87`	`87`	`computed: mapState([`