[JavaScript] Fill in readme (#1110)

* chore: javascript readme

* chore: javascript readme

* Update javascript/README.md

---------

Co-authored-by: Shawn <shawn.ck.yang@gmail.com>

javascript/README.md

@@ -1 +1,43 @@
 # Fury JavaScript 
+Javascript implementation for the fury protocol.
+The CrossLanguage part of the protocol is not stable, so the output of this library may change in the future. Please be cautious when using it in a production environment.
+
+## Install
+```shell
+npm install @furyjs/fury
+npm install @furyjs/hps
+```
+
+## Usage
+```Javascript
+import Fury, { Type, InternalSerializerType } from '@furyjs/fury';
+
+/**
+ * @furyjs/hps use v8's fast-calls-api that can be called directly by jit, ensure that the version of Node is 20 or above.
+ * Experimental feature, installation success cannot be guaranteed at this moment
+ * If you are unable to install the module, replace it with `const hps = null;`
+ **/
+import hps from '@furyjs/hps';
+
+// Now we describe data structures using JSON, but in the future, we will use more ways.
+const description = Type.object('example.foo', {
+  foo: Type.string(),
+});
+const fury = new Fury({ hps });
+const { serialize, deserialize } = fury.registerSerializer(description);
+const input = serialize({ foo: 'hello fury' });
+const result = deserialize(input);
+console.log(result);
+```
+
+## Packages
+
+### fury
+Implement the protocol of fury, generate javascript code at runtime to make sure that all the code could be jit by v8 efficiently
+
+### hps
+Nodejs high-performance suite, ensuring that your Node.js version is 20 or later.
+hps is use for detect the string type in v8. Fury support latin1 and utf8 string both, we should get the certain type of string before write it
+in buffer. It is slow to detect the string is latin1 or utf8, but hps can detect it by a hack way, which is called FASTCALL in v8. 
+so it is not stable now.
+