update classname typos

Author: kyleturco

docs/app/Examples/elements/Button/Content/ButtonConditionalsExample.js

@@ -1,7 +1,7 @@
 import React, {Component} from 'react';
 import {Buttons, Button} from 'stardust';
 
-export default class ButtonButtonsExample extends Component {
+export default class ButtonConditionalsExample extends Component {
   render() {
     return (
       <Buttons>

docs/app/Examples/elements/Button/Content/ButtonContentExamples.js

@@ -3,7 +3,7 @@ import ComponentExample from 'docs/app/Components/ComponentDoc/ComponentExample'
 import ExampleSection from 'docs/app/Components/ComponentDoc/ExampleSection';
 import {Message} from 'stardust';
 
-export default class ButtonStatesExamples extends Component {
+export default class ButtonContentExamples extends Component {
   render() {
     return (
       <ExampleSection title='Content'>

docs/app/Examples/elements/Button/Groups/ButtonGroupsExamples.js

@@ -2,7 +2,7 @@ import React, {Component} from 'react';
 import ComponentExample from 'docs/app/Components/ComponentDoc/ComponentExample';
 import ExampleSection from 'docs/app/Components/ComponentDoc/ExampleSection';
 
-export default class ButtonStatesExamples extends Component {
+export default class ButtonGroupsExamples extends Component {
   render() {
     return (
       <ExampleSection title='Groups'>