Merge #1034

1034: TSP Readme; add not for dj10 source r=cuviper a=Horki

Nothing special; just added a single note into tsp README

Co-authored-by: Ivan Zvonimir Horvat <ivan.zvonimir.horvat@bizzon.com>

Author: bors[bot]

rayon-demo/data/tsp/README.md

@@ -3,6 +3,7 @@ format.
 
 Sources:
 
+- `dj10.tsp`: derived from `dj38.tsp`
 - `dj15.tsp`: derived from `dj38.tsp`
 - `dj38.tsp`: <https://www.math.uwaterloo.ca/tsp/world/dj38.tsp>