Update documentation

website/docs/advanced/build.md

@@ -1,6 +1,6 @@
 # Build
 
-Requires [Git](https://git-scm.com/) and [Go >=1.22](https://go.dev/) to be installed.
+Requires [Git](https://git-scm.com/) and [Go >=1.23](https://go.dev/) to be installed.
 
 To build **STOPnik** the repository should be cloned and the build command executed.
 
@@ -14,4 +14,20 @@ And then start **STOPnik** with
 
 ```bash
 ./stopnik
-```
+```
+
+## Test
+
+Execute tests inside the repository root folder with
+
+```bash
+go test ./...
+```
+
+To get access to the HTML coverage report the following script can be executed
+
+```bash
+./test.sh html
+```
+
+The coverage report will be created in the `.test_coverage` folder