feat(web): document the API

lib/binding_web/src/bindings.ts

@@ -1,7 +1,14 @@
 import createModule, { type MainModule } from '../lib/tree-sitter';
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+import { type Parser } from './parser';
 
 export let Module: MainModule | null = null;
 
+/**
+ * @internal
+ *
+ * Initialize the Tree-sitter WASM module. This should only be called by the {@link Parser} class via {@link Parser.init}.
+ */
 export async function initializeBinding(moduleOptions?: EmscriptenModule): Promise<MainModule> {
   if (!Module) {
     Module = await createModule(moduleOptions);
@@ -9,6 +16,11 @@ export async function initializeBinding(moduleOptions?: EmscriptenModule): Promi
   return Module;
 }
 
+/**
+ * @internal
+ *
+ * Checks if the Tree-sitter WASM module has been initialized.
+ */
 export function checkModule(): boolean {
   return !!Module;
 }