libcurl.load_wasm now returns a promise

README.md

@@ -42,7 +42,7 @@ This is an experimental port of [libcurl](https://curl.se/libcurl/) to WebAssemb
 - Works inside web workers without needing special permissions or headers
 - Works in all major browsers (Chromium >= 64, Firefox >= 65, Safari >= 14)
 - Has the ability to create multiple independent sessions
-- Small footprint size (800kb after compression) and low runtime memory usage
+- Small footprint size (672KB after compression) and low runtime memory usage
 - Support for Brotli and gzip compressed responses
 
 ## Building:
@@ -74,6 +74,16 @@ To import the library, follow the build instructions in the previous section, an
 <script defer src="./out/libcurl.js" onload="libcurl.load_wasm('/out/libcurl.wasm');"></script>
 ```
 
+You may also call and await `libcurl.load_wasm` in your own async code. It returns a promise which resolves once libcurl.js is fully ready. 
+```js
+async function main() {
+  await libcurl.load_wasm("/out/libcurl.wasm");
+  console.log(await libcurl.fetch("https://ading.dev/"));
+}
+main();
+```
+If you are using the single file version (`libcurl_full.js`), the `libcurl.load_wasm` function can still be used to wait for the WASM to load, although the url provided to it has no effect. 
+
 Alternatively, prebuilt versions can be found on NPM and jsDelivr. You can use the following URLs to load libcurl.js from a third party CDN.
 ```
 https://cdn.jsdelivr.net/npm/libcurl.js@latest/libcurl.js