Remove CDN part in installation

Author: jeromewu

src/Installation.js

@@ -4,13 +4,12 @@ import Typography from '@material-ui/core/Typography'
 import{makeStyles}from'@material-ui/core/styles';
 importHighlight,{defaultProps}from'prism-react-renderer';
 importvsDarkfrom'prism-react-renderer/themes/vsDark';
-import{dependencies}from'../package.json';
 
 constNPM_INSTALL_SCRIPTS=`
 # Use npm
-$ npm install @ffmpeg/ffmpeg
+$ npm install @ffmpeg/ffmpeg @ffmpeg/core
 # Use yarn
-$ yarn add @ffmpeg/ffmpeg
+$ yarn add @ffmpeg/ffmpeg @ffmpeg/core
 `.trim('\n');
 
 constNPM_CORE_INSTALL_SCRIPTS=`
@@ -20,14 +19,6 @@ $ npm install @ffmpeg/core
 $ yarn add @ffmpeg/core
 `.trim('\n');
 
-constCDN_INSTALL_SCRIPTS=`
-<script src='https://unpkg.com/@ffmpeg/ffmpeg@${dependencies['@ffmpeg/ffmpeg'].slice(1)}/dist/ffmpeg.min.js'></script>
-<script>
- const{createFFmpeg } = FFmpeg;
- /* ... */
-</script>
-`.trim('\n');
-
 constuseStyles=makeStyles({
 root: {
 margin: '48px 0px 48px 0px',
@@ -69,13 +60,6 @@ function Installation(){
 language="bash"
 code={NPM_INSTALL_SCRIPTS}
 />
-<TypographyclassName={classes.para}variant="h6">
- Or use a CDN
-</Typography>
-<ReadOnlyEditor
-language="html"
-code={CDN_INSTALL_SCRIPTS}
-/>
 <TypographyclassName={classes.para}variant="h6">
  If you want to use it in node.js, you need to install @ffmpeg/core as well.
 </Typography>