Merge pull request reduxjs#568 from existentialism/typos

Fix typo and use property shorthand in test example

Author: gaearon

docs/recipes/WritingTests.md

@@ -199,9 +199,9 @@ function setup() {
   let output = renderer.getRenderOutput();
 
   return {
-    props: props,
-    output: output,
-    renderer: renderer
+    props,
+    output,
+    renderer
   };
 }
 
@@ -225,7 +225,7 @@ describe('components', () => {
       expect(input.props.placeholder).toBe('What needs to be done?');
     });
 
-    it('should call call addTodo if length of text is greater than 0', () => {
+    it('should call addTodo if length of text is greater than 0', () => {
       const { output, props } = setup();
       let input = output.props.children[1];
       input.props.onSave('');