added ccredits

CREDITS.md

@@ -0,0 +1,33 @@
+
+# CREDITS to people whose work was of great help to us
+
+<br />
+
+## For source code we reused
+
+<br />
+
+* TWW/CTR - for his keyboard handling code
+* Graham - for his PAL/NTSC detection routine
+* enthusi/Onslaught - for his example Turbo Tape 64 compatible loader
+
+<br />
+
+## For documentation
+
+<br />
+
+* Frantic - for [Codebase 64](https://codebase64.org)
+* Joe Forster/STA - for the official/unofficial ROM API description at [sta.c64.org](http://sta.c64.org)
+* J. Derogee - for the IEC Disected document
+* Michael Steil - for a great IEC protocol description and various other documentation at [his blog](https://www.pagetable.com)
+* Jochen Adler - for the JiffyDOS protocol reverse engineering
+* H2Obsession - for the JiffyDOS protocol description on [his page](https://sites.google.com/site/h2obsession/CBM/C128/JiffySoft128)
+* SD2IEC team - the project [source code](https://github.com/rkrajnc/sd2iec) helped a lot when adding IEC and JiffyDOS support
+* slark - for his screen codes / PETSCII description at [slark.me](https://slark.me)
+* silverdr - for the floating point routines [description](https://codebase64.org/doku.php?id=base:kernal_floating_point_mathematics)
+* the [C64 Wiki](https://www.c64-wiki.com) contributors
+
+<br />
+
+* ... and all the others we forgot

README.md

@@ -5,6 +5,8 @@ A project to create unencumbered open-source ROMs for use on selected retro comp
 * [implementation status](./STATUS.md) of various APIs and functionalities
 * [configuration options](./CONFIG.md) for those willing to compile their own, customized ROM set
 * [development guide](./doc/Development.md) for those interested in OpenROMs technical aspects
+* [license](./LICENSE) information and list of major contributors
+* [credits](./CREDITS.md) to people whose work was of great help to us
 
 # Problem Statement and Motivation