Add instructions how to build & run the examples

examples/README.md

@@ -11,3 +11,40 @@ Demo | `.60` Design | Rust Source | C++ Source | Description
 --- | --- | --- | --- | ---
 `printerdemo`| [`ui.60`](./printerdemo/ui/printerdemo.60) | [`main.rs`](./printerdemo/rust/main.rs) | [`main.cpp`](./printerdemo/cpp/main.cpp) | A fictional user interface for the touch screen of a printer
 `gallery` |[`gallery.60`](./gallery/gallery.60) | [`main.rs`](./gallery/main.rs) | [`main.cpp`](./gallery/main.cpp) | A gallery of different widgets
+
+## Running the Rust Examples
+
+You can run the examples either by going into the rust sub-folder and use `cargo run`, for example:
+
+```sh
+cd examples/printerdemo/rust
+cargo run
+```
+
+or you can run them from anywhere in the Cargo workspace by name:
+
+```sh
+cargo run --bin printerdemo
+```
+
+## Running the C++ Examples
+
+The C++ API comes with a CMake integration, which needs to be built first:
+
+```sh
+cargo xtask cmake
+```
+
+This creates CMake configuration files in the `target/debug` folder
+(or `target/release` if you run `cargo xtask cmake --release`).
+
+Then, from another directory, you can run cmake in the `cpp` folder of an example:
+
+```
+cd examples/printerdemo/cpp
+mkdir build
+cd build
+cmake -DCMAKE_PREFIX_PATH=../../../../target/debug/ ..
+cmake --build .
+./printerdemo
+```