Fix PR issues

Author: timfish

README.md

@@ -1,21 +1,16 @@
 # Orchestion-JS
 
-Orchestrion is a library for instrumenting Node.js libraries at build or load
-time.
+Orchestrion is a library for instrumenting Node.js libraries at build or load time.
 
-It provides `VisitMut` implementations for SWC's AST nodes, which can be used to
-insert tracing code into matching functions. It can be used in SWC plugins, or
-anything else that mutates JavaScript ASTs using SWC.
+It provides `VisitMut` implementations for SWC's AST nodes, which can be used to insert tracing code into matching functions. 
+It can be used in SWC plugins, or anything else that mutates JavaScript ASTs using SWC.
 
-Orchestrion can also be built as a JavaScript module, which can be used from
-Node.js.
+Orchestrion can also be built as a JavaScript module, which can be used from Node.js.
 
-To build the JavaScript module, ensure you have
-[Rust installed](https://www.rust-lang.org/tools/install) and then run:
-
-```bash
-npm install && npm run build
-```
+To build the JavaScript module:
+- Ensure you have [Rust installed](https://www.rust-lang.org/tools/install)
+- Install the wasm toolchain `rustup target add wasm32-unknown-unknown --toolchain stable`
+- Install dependencies and build the module `npm install && npm run build`
 
 ## Contributing
 

src/wasm.rs

@@ -32,11 +32,7 @@ pub struct Transformer(InstrumentationVisitor);
 impl Transformer {
     #[wasm_bindgen]
     pub fn transform(&mut self, contents: &str, is_module: bool) -> Result<String, JsValue> {
-        let is_module = if is_module {
-            IsModule::Bool(true)
-        } else {
-            IsModule::Bool(false)
-        };
+        let is_module = IsModule::Bool(is_module);
         self.0
             .transform(contents, is_module)
             .map_err(|e| JsValue::from_str(&e.to_string()))