added initial components and routing

src/components/Board.js

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+import React from "react";
+
+class Board extends React.Component {
+  render() {
+    return (
+      <div>
+        <h1>Board</h1>
+      </div>
+    );
+  }
+}
+
+export default Board;

src/components/Home.js

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+import React from 'react';
+
+class Home extends React.Component {
+  render() {
+    return (
+      <div className='container'>
+        <h1>plebchan</h1>
+      </div>
+    );
+  }
+}
+
+export default Home;

src/components/Thread.js

@@ -0,0 +1,13 @@
+import React from "react";
+
+class Thread extends React.Component {
+  render() {
+    return (
+      <div>
+        <h1>Thread</h1>
+      </div>
+    );
+  }
+}
+
+export default Thread;