snappyHexMeshDict flange tutorial: changed to mesh the inside of the flange

tutorials/mesh/snappyHexMesh/flange/system/snappyHexMeshDict

@@ -144,8 +144,8 @@ castellatedMeshControls
     // section reachable from the locationInMesh is kept.
     // NOTE: This point should never be on a face, always inside a cell, even
     // after refinement.
-    locationInMesh (-0.033 -0.033 0.0033);
-
+    // This is an outside point locationInMesh (-0.033 -0.033 0.0033);
+    locationInMesh (-9.23149e-05 -0.0025 -0.0025); // Inside point
 
     // Whether any faceZones (as specified in the refinementSurfaces)
     // are only on the boundary of corresponding cellZones or also allow