feat: add java languaje example

src/components/MarkdownOutput/readme.md

@@ -76,7 +76,7 @@ import styled from 'styled-components';
 import { Card, RadioButtonGroup, Textarea, MarkdownOutput } from 'react-rainbow-components';
 
 initialState = {
-    text: '# Code examples\n ### Standard \n```\nconst data = \'Lorem ipsum....\';\n\nconst doSomething = (param) => {\n};\n\nconst xx = doSomething(data);\n```\n\n ### Javascript \n```js\nconst data = \'Lorem ipsum....\';\n\nconst doSomething = (param) => {\n};\n\nconst xx = doSomething(data);\n```\n\n ### Shell \n```sh\n$ node index.js;\n```\n\n ### Java \n ```\n String foo = 5;\n```',
+    text: '# Code examples\n ### Standard \n```\nconst data = \'Lorem ipsum....\';\n\nconst doSomething = (param) => {\n};\n\nconst xx = doSomething(data);\n```\n\n ### Javascript \n```js\nconst data = \'Lorem ipsum....\';\n\nconst doSomething = (param) => {\n};\n\nconst xx = doSomething(data);\n```\n\n ### Shell \n```sh\n$ node index.js;\n```\n\n ### Java \n ```java\n String foo = 5;\n```',
 };
 
 const StyledCard = styled(Card)`