add installation instructions

ScStwLibraries/ScStw.hpp

@@ -9,10 +9,34 @@
  *
  * @section intro_sec Introduction
  *
- * This is the Introduction
+ * This library is meant for usage with the Speed climbing stopwatch project.
+ * It contains some helper classes to build a client application for the ScStw basestation with Qt.
  *
- * @section section install_sec Installation
- * @subsection step1 Step 1: Opening the box
+ * @section section Installation
+ * @code{.sh}
+ * cd yourRepo
+ * git submodule add https://git.itsblue.de/ScStw/shared-libraries/
+ * git submodule update --init --recursive
+ * @endcode
+ *
+ * Add to the list of libraries for the Qt-Secret assembly. For an example you can create Main.Pro in which connect Qt-Secret and your project.pro files as subprojects.
+ *
+ * Main.pro:
+ * @code{.pro}
+ * TEMPLATE = subdirs
+ * CONFIG += ordered
+ *
+ * SUBDIRS += \
+ *          ScStwLibraries \
+ *          MyProject
+ *
+ * ScStwLibraries.file =  shared-libraries/ScStwLibraries/ScStwLibraries.pro
+ * @endcode
+ *
+ * And in your MyProject.pro include the .pri file
+ * @code{.pro}
+ * include($$PWD/../shared-libraries/ScStwLibraries/ScStwLibraries.pri)
+ * @endcode
  */
 
 /**