Improve documentation (#349)

* Improve documentation content
* Improve documentation style

docs/src/theme/Icon/DarkMode/index.js

@@ -0,0 +1,9 @@
+import React from 'react';
+import { TbMoon } from 'react-icons/tb';
+import {useColorMode} from '@docusaurus/theme-common';
+
+
+export default function IconDarkMode(props) {
+  const { colorMode } = useColorMode().colorMode;
+  return colorMode === 'dark' ? <TbMoon /> : <></>;
+}

docs/src/theme/Icon/Home/index.js

@@ -0,0 +1,5 @@
+import React from 'react';
+import { TbHome } from 'react-icons/tb';
+export default function IconHome(props) {
+  return <TbHome size={14} />;
+}

docs/src/theme/Icon/LightMode/index.js

@@ -0,0 +1,9 @@
+import React from 'react';
+import { TbSun } from 'react-icons/tb';
+import {useColorMode} from '@docusaurus/theme-common';
+
+
+export default function IconLightMode(props) {
+  const { colorMode } = useColorMode().colorMode;
+  return colorMode === 'dark' ? <></>: <TbSun /> ;
+}