chore: add changelog file (#259)

Author: andreiltd

CHANGELOG.md

@@ -0,0 +1,21 @@
+ # Changelog
+
+## 0.1.0 (2025-08-06)
+
+While this is the first tagged release in this repository, StarlingMonkey build artifacts have been distributed as part of [ComponentizJS](https://github.com/bytecodealliance/ComponentizeJS) releases for some time.
+
+This release is based on [SpiderMonkey](https://spidermonkey.dev/) version 127 and in addition to SpiderMonkey's JavaScript support includes a wide range of web builtins, including:
+
+* **Console**: `console`
+* **Crypto**: (A subset of) `SubtleCrypto`, `Crypto`, `crypto`, `CryptoKey`
+* **Encoding**: `TextEncoder`, `TextDecoder`, `CompressionStream`, `DecompressionStream`
+* **Fetch**: `fetch`, `Request`, `Response`, `Headers`
+* **Forms, Files, and Blobs**: `FormData`, `MultipartFormData`, `File`, `Blob`
+* **Legacy Encoding**: `atob`, `btoa`, `decodeURI`, `encodeURI`, `decodeURIComponent`, `encodeURIComponent`
+* **Location**: `WorkerLocation`, `location`
+* **Performance**: `Performance`
+* **Streams**: `ReadableStream`, `ReadableStreamBYOBReader`, `ReadableStreamBYOBRequest`, `ReadableStreamDefaultReader`, `ReadableStreamDefaultController`, `ReadableByteStreamController`, `WritableStream`, `ByteLengthQueuingStrategy`, `CountQueuingStrategy`, `TransformStream`
+* **Structured Clone**: `structuredClone`
+* **Task**: `queueMicrotask`, `setInterval` `setTimeout` `clearInterval` `clearTimeout`
+* **URL**: `URL`, `URLSearchParams`
+