Added contents and sections.

tools/oneclick/prestudy/YAML/args_readme.txt

-Howto for new tools.
+This readme is an introduction to py_args_lib.
+
+Contents:
+1) Demo of py_args_lib
+2) How to develop new tool scripts that use py_args_lib
+3) Examples of tool scripts that use py_args_lib
+
+
+
+1) Demo of py_args_lib
+
+./args_demo.py -h                                 # help
+./args_demo.py -s unb1_minimal_sopc -v INFO       # show system.yaml contents
+./args_demo.py -p unb1_board dp -v INFO           # show peripheral.yaml contents
+
+
+
+2) How to develop new tool scripts that use py_args_lib
 
 # import all from py_args_lib
 from py_args_lib import *
@@ -21,3 +38,22 @@ system = System(filename=[*.system.yaml])
 peripheral = system.peripherals['peripheral_name']
 
 
+
+3) Examples of tool scripts that use py_args_lib
+
+a) Create pdf documentation (very draft)
+
+./args_documentation.py -s unb1_minimal_sopc       # system with all it peripherals
+okular unb1_minimal_sopc.pdf
+
+./args_documentation.py -p unb1_board dp           # only the peripheral
+okular unb1_board.pdf
+
+
+b) Create ROM system info for Uniboard
+
+./uniboard_rom_system_info.py -s unb1_minimal_sopc            # with self generated base addresses
+more unb1_minimal_sopc.reg
+
+./uniboard_rom_system_info.py -s unb1_minimal_sopc -q         # using base addresses from sopc file (via -q)
+more unb1_minimal_sopc.reg