Generate license info in README

Co-authored-by: Keith Cirkel <keithamus@users.noreply.github.com>

README.md

@@ -81,5 +81,10 @@ Browsers without native [custom element support][support] require a [polyfill][]
 - Firefox
 - Safari
 - Microsoft Edge
+
 [support]: https://caniuse.com/custom-elementsv1
 [polyfill]: https://github.com/webcomponents/custom-elements
+
+## License
+
+Distributed under the MIT license. See LICENSE for details.

cem-plugin-readme.js

@@ -16,6 +16,7 @@ Browsers without native [custom element support][support] require a [polyfill][]
 - Firefox
 - Safari
 - Microsoft Edge
+
 [support]: https://caniuse.com/custom-elementsv1
 [polyfill]: https://github.com/webcomponents/custom-elements`
 }
@@ -44,6 +45,12 @@ Include with a script tag:
 \`\`\``
 }
 
+function generateLicense() {
+  return `## License
+
+Distributed under the MIT license. See LICENSE for details.`
+}
+
 const escapeHTML = (html) => {
     return html.replaceAll('&', '&amp;').replaceAll('<', '&lt;').replaceAll('>', '&gt;').replaceAll('"', '&quot;').replaceAll("'", '&#039;');
 }
@@ -72,6 +79,7 @@ export function readme(options) {
       }
 
       content.push(generateBrowserSupportInstructions())
+      content.push(generateLicense())
       content.push(footer)
 
       writeFileSync(filename, content.filter(Boolean).join('\n\n'))