README: link ged2dot.js

Change-Id: I110d1e27d66560ce62f7c5fa6c62c3b42c708fbd

Author: vmiklos

README.adoc

@@ -127,6 +127,8 @@ in case placeholders have to be used for missing images.
 == Resources
 
 - https://www.familysearch.org/developers/docs/guides/gedcom[GEDCOM specification]
+- https://gist.github.com/fetsorn/1d5f6cbc47989b32cb461528c1e253b4[Translation of ged2dot to
+  JavaScript]
 
 == Download