Merge pull request #737 from PowerGridModel/fix/build-guide-user-build

improve user build guide

docs/advanced_documentation/build-guide.md

@@ -126,10 +126,29 @@ You can specifiy a standard [CMAKE_BUILD_TYPE](https://cmake.org/cmake/help/late
 This will only build the core C-API dynamic library.
 
 ```shell
-cmake -DCMAKE_BUILD_TYPE=Release -B build
-cmake --build build --config Release
+cmake -DCMAKE_BUILD_TYPE=Release -B build/
+cmake --build build/ --config Release
 ```
 
+You can further install the C-API dynamic library in the default `CMAKE_INSTALL_PREFIX` or a local directory.
+The command below installs the C-API dynamic library in a local directory `install`.
+
+```shell
+cmake --install build/ --config Release --prefix install/
+```
+
+In the repository there is a package test that consumes the C-API dynamic library.
+We can configure, build, install, and run the package test.
+
+```shell
+cd tests/package_tests
+cmake -DCMAKE_BUILD_TYPE=Release -Dpower_grid_model_DIR="../../install/lib/cmake/power_grid_model/" -B build/
+cmake --build build/ --config Release
+cmake --install build/ --config Release --prefix install/
+./install/bin/power_grid_model_package_test
+```
+
+
 ### Developer build
 
 If you opt for a developer build of Power Grid Model,