Add D&M and teo-electronics

overview/development.md

@@ -1,7 +1,11 @@
 # Overview: Development
 
-There are mainly to repositories concerned with development of TEO software, which are in fact defined at [roboticslab-uc3m](https://github.com/roboticslab-uc3m) organization level.
+There are mainly two repositories concerned with development of TEO software, which are in fact defined at [roboticslab-uc3m](https://github.com/roboticslab-uc3m) organization level.
 
 - [developer-manual](https://github.com/roboticslab-uc3m/developer-manual): Developer Manual for [roboticslab-uc3m](https://github.com/roboticslab-uc3m).
 - [project-generator](https://github.com/roboticslab-uc3m/project-generator): Project structure and file generation for [roboticslab-uc3m](https://github.com/roboticslab-uc3m), using templates and user CLI input.
 
+These in turn refer to additional documentation of TEO's hardware:
+
+- [datasheets-and-manuals](https://github.com/roboticslab-uc3m/datasheets-and-manuals): Third party datasheets, manuals, mechanical layout drawings, electronic schematics...
+- [teo-electronics](https://github.com/roboticslab-uc3m/teo-electronics): All sort of schematics for TEO's electronic boards.