fix: update yarn command line in build script

.gitignore

@@ -3,3 +3,10 @@ node_modules/
 build
 dist/
 .npmrc
+.yarn/*
+!.yarn/cache
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/sdks
+!.yarn/versions

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

README.md

@@ -22,7 +22,7 @@ This guarantees that you will always use the latest version of the library.
 
 If, instead, you'd like to include the latest version explicitly, you can add the following tag:
 ```html
-<script src="https://twemoji.maxcdn.com/v/14.0.2/twemoji.min.js" integrity="sha384-32KMvAMS4DUBcQtHG6fzADguo/tpN1Nh6BAJa2QqZc6/i0K+YPQE+bWiqBRAWuFs" crossorigin="anonymous"></script>
+<script src="https://unpkg.com/twemoji@14.0.2/dist/twemoji.min.js" integrity="sha384-ICOlZarapRIX6UjKPcWKEpubjg7lGADN7Y9fYP4DU9zm0aPFhgnP5ef+XFaPyKv+" crossorigin="anonymous"></script>
 ```
 
 ### Download

scripts/create-dist

@@ -39,7 +39,7 @@ fs.writeFileSync(
 );
 
 spawnSync(
-  'yarnpkg',
+  'yarn',
   [
     'uglifyjs',
     '--verbose',