git commit -m "first commit"

navigations/nav_msgs/msg/OccupancyGrid.msg

@@ -0,0 +1,11 @@
+# This represents a 2-D grid map, in which each cell represents the probability of
+# occupancy.
+
+Header header 
+
+#MetaData for the map
+MapMetaData info
+
+# The map data, in row-major order, starting with (0,0).  Occupancy
+# probabilities are in the range [0,100].  Unknown is -1.
+int8[] data