add cave circuit dat file to gitignore (osrf#730)

Samu24 · web-flow · commit 3b94bbd5416e · 2020-12-17T07:41:29.000-08:00
diff --git a/.gitignore b/.gitignore
@@ -36,5 +36,6 @@
 # Other
 cave_circuit_practice_02.dat
 cave_circuit_03.dat
+cave_circuit_04.dat
 cave_circuit_07.dat
 cave_circuit_08.dat
