Added link to web-tiki.com

Author: web-tiki

README.md

@@ -66,3 +66,6 @@ The value of margin left is **half the width of one hexagon** so for 8 hexagons
 with of hexagons = 12.5% (see "width of .hex")
 margin-left = 12.5 / 2 = 6.25%
 ```
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