Clarify orientation requirements for Lighthouses

Author: cjsha

OpenEphys.Onix1/TS4231V1PositionData.cs

@@ -24,7 +24,7 @@ namespace OpenEphys.Onix1
     /// <item><description>Two SteamVR V1 base stations are used.</description></item>
     /// <item><description>The base stations have been synchronized with a patch cable and their modes set to
     /// ‘A’ and ‘b’, respectively.</description></item>
-    /// <item><description>The base stations are pointed in the same direction.</description></item>
+    /// <item><description>The base stations are in the same 3D orientation at an arbitrary 3D offset.</description></item>
     /// <item><description>The Z-axis extends away the emitting face of lighthouses, X along the direction of
     /// the text on the back label, and Y from bottom to top text on the back label.</description></item>
     /// </list>