chore: examples update and docs, add package-list example

examples/package-list/src/main.rs

@@ -0,0 +1,15 @@
+use ckanaction::CKANError;
+
+#[tokio::main]
+async fn main() -> Result<(), CKANError> {
+    // Initialize and build CKAN struct
+    let ckan = ckanaction::CKAN::builder()
+        .url("http://localhost:5000")
+        .build();
+
+    // Send request to /package_list and print formatted debug output
+    let package_list = ckan.package_list().call().await?;
+    println!("{package_list:#?}");
+
+    Ok(())
+}