improve docs, fix example

deltachat-jsonrpc/README.md

@@ -27,16 +27,29 @@ If you are targetting other architectures (like KaiOS or Android), the webserver
 cross build --features=webserver --target armv7-linux-androideabi --release
 ```
 
+### Using the typescript client
+
+The package includes TypeScript bindings which are partially auto-generated through the JSON-RPC library used by this crate ([yerpc](https://github.com/Frando/yerpc/)). Find the source in the [`typescript`](typescript) folder. The client is also published on npm as `@deltachat/jsonrpc-client`.
+
+To use it locally, first install the dependencies and compile the TypeScript code to JavaScript:
+```sh
+cd typescript
+npm install
+npm run build
+```
+
+You can also build autogenerated documentation, including all RPC methods:
+```sh
+cd typescript
+npm run docs
+```
+Now, open the [`typescript/docs`](typescript/docs) folder in a web browser.
+
+
 ### Running the example app
 
 We include a small demo web application that talks to the WebSocket server. To run it, follow these steps:
 
-* The package includes TypeScript bindings which are partially auto-generated through the JSON-RPC library used by this crate ([yerpc](https://github.com/Frando/yerpc/)).
-  ```sh
-  cd typescript
-  npm install
-  npm run build
-  ```
 
 * Then, build and run the example application:
   ```sh