docs: fix example code (#927)

xlfsummer · eddyerburgh · commit 6fbdea075b8d · 2018-08-16T09:14:55.000+01:00
diff --git a/docs/api/shallowMount.md b/docs/api/shallowMount.md
@@ -89,7 +89,7 @@ describe('Foo', () => {
         foo: '<div />'
       }
     })
-    expect(wrapper.find('div')).toBe(true)
+    expect(wrapper.contains('div')).toBe(true)
   })
 })
 ```

Original file line number	Diff line number	Diff line change
`@@ -89,7 +89,7 @@ describe('Foo', () => {`
`89`	`89`	`foo: '<div />'`
`90`	`90`	`}`
`91`	`91`	`})`
`92`		`- expect(wrapper.find('div')).toBe(true)`
	`92`	`+ expect(wrapper.contains('div')).toBe(true)`
`93`	`93`	`})`
`94`	`94`	`})`
`95`	`95`	```