Add instructions for local development

diff --git a/README.md b/README.md
index 9e955d047cb60ab4b2ddfe974276245b376b8f48..d97093b60748b92448706acf5c17b91204602650 100644 (file)
--- a/README.md
+++ b/README.md
@@ -1,3 +1,19 @@
 # utf-8-visualizer
 
 A tool to visualize how Unicode code points get encoded into UTF-8.
+
+## Local development
+
+Use any local web server to host the static files. For example, if you have Node.js installed:
+
+1. Install a local web server:
+
+```
+npm i -g local-web-server
+```
+
+2. Serve the files:
+
+```
+ws
+```