add import instructions to README

README.md

@@ -0,0 +1,11 @@
+# Using WFA-JS
+
+Download `wfa.js` and `wfa.wasm`from [releases](https://git.tronnet.net/tronnet/WFA-JS/releases) to your project. Add to your script:
+
+```
+import wfa from "./wfa.js"
+await wfa("<path to wasm>")
+console.log(wfAlign(...))
+```
+
+Where `<path to wasm>` is the path from the site root ie. `./scripts/wfa.wasm`. This will depend on your project structure.