CREDITS.md

Based on work by Stephen Houser N1SH

From https://gist.githubusercontent.com/stephenhouser/4ad8c1878165fc7125cb547431a2bdaa/raw/44e08e82061f251cf3557a14fc5b322616daca88/HamGridSquare.js

Which in turn was based on HamGridSquare.js

Copyright 2014 Paul Brewer KI6CQ License: MIT License http://opensource.org/licenses/MIT

Which in turn was inspired in part by K6WRU Walter Underwood's python answer to this stack overflow question: How Can One Convert From Lat/Long to Grid Square