continue book

satrs-book/src/SUMMARY.md

@@ -1,3 +1,5 @@
 # Summary
 
-- [Chapter 1](./chapter_1.md)
+- [The sat-rs book](./title-page.md)
+- [Introduction](./introduction.md)
+

satrs-book/src/introduction.md

@@ -0,0 +1,11 @@
+# Introduction
+
+This is the repository of the sat-rs framework. Its primary goal is to provide re-usable components
+to write on-board software for remote systems like rovers or satellites. It is specifically written
+for the special requirements for these systems.
+
+A lot of the architecture and general design considerations are based on the
+[FSFW](https://egit.irs.uni-stuttgart.de/fsfw/fsfw) C++ framework which has flight heritage
+through the 2 missions [FLP](https://www.irs.uni-stuttgart.de/en/research/satellitetechnology-and-instruments/smallsatelliteprogram/flying-laptop/)
+and [EIVE](https://www.irs.uni-stuttgart.de/en/research/satellitetechnology-and-instruments/smallsatelliteprogram/EIVE/).
+