doc: update readme

README.md

@@ -56,12 +56,32 @@ cmake \
     -B build \
     -G Ninja \
     -DCMAKE_PREFIX_PATH=<qt-wasm-path> \
-    -DCMAKE_INSTALL_PREFIX=<qt-wasm-path> \
+    -DCMAKE_INSTALL_PREFIX=build/install \
     -DCMAKE_TOOLCHAIN_FILE=<qt-wasm-path>/wasm/lib/cmake/Qt6/qt.toolchain.cmake
 
 cmake --build build
+cmake --install build
 ```
 
+## Running
+
+You can use 'qtwasmserver' package to run the Qt Design Viewer:
+
+To install the package:
+
+```bash
+python -m pip install qtwasmserver
+```
+
+And then run the server:
+
+```bash
+cd build/install
+qtwasmserver .
+```
+
+Then open <http://localhost:8000> in Your web browser.
+
 ## Usage
 
 Compress Your Qml project as a _.zip_ file, ideally including a _.qmlproject_ file. Or use the _Build -> Generate Resource File_ feature of Qt Design Studio 1.3+ to pack Your project in a _.qmlrc_ file.