Update readme and fix deps

Author: lucasmerlin

crates/octocrab-wasm/Cargo.toml

@@ -5,6 +5,8 @@ edition = "2024"
 
 [dependencies]
 octocrab = { version = "0.45.0", default-features = false }
+
+[target.'cfg(target_arch = "wasm32")'.dependencies]
 http-body = "1.0.1"
 tower = "0.5.2"
 http = "1.3.1"

crates/octocrab-wasm/README.md

@@ -2,3 +2,21 @@
 
 This is a thin wrapper around [octocrab](https://crates.io/crates/octocrab) that
 adds support for using octocrab in wasm based on reqwest.
+
+### Usage
+
+This crate exports a builder that works natively and in wasm:
+```rust
+    let mut client = octocrab_wasm::builder()
+        .build()
+        .expect("Failed to build Octocrab client");
+
+    // Optionally set a GitHub auth token
+    if let Some(token) = &auth_token {
+        client = client
+            .user_access_token(token.to_owned())
+            .expect("Failed to set token");
+    }
+
+    // Now do some requests!
+```