Apply suggestions from code review

Co-authored-by: Tony Alberti <[email protected]>

Author: john-science

armi/reactor/grids/hexagonal.py

@@ -78,7 +78,7 @@ def fromPitch(pitch, numRings=25, armiObject=None, pointedEndUp=False, symmetry=
             :id: I_ARMI_GRID_HEX
             :implements: R_ARMI_GRID_HEX
 
-        .. impl:: Hexagonal grids can be tips-up or flats-up.
+        .. impl:: Hexagonal grids can be points-up or flats-up.
             :id: I_ARMI_GRID_HEX_TYPE
             :implements: R_ARMI_GRID_HEX_TYPE
 

armi/reactor/grids/structuredgrid.py

@@ -290,7 +290,7 @@ def restoreBackup(self):
         self._unitSteps, self._bounds, self._offset = self._backup
 
     def getCoordinates(self, indices, nativeCoords=False) -> numpy.ndarray:
-        """Return the coordinates of the center of the mesh cell at the given given indices in cm.
+        """Return the coordinates of the center of the mesh cell at the given indices in cm.
 
         .. test:: Get the coordinates from a location in a grid.
             :id: I_ARMI_GRID_GLOBAL_POS

armi/reactor/grids/tests/test_grids.py

@@ -350,10 +350,10 @@ def test_thirdAndFullSymmetry(self):
         self.assertEqual(third.getPositionsInRing(3), 12)
         self.assertEqual(third.getSymmetricEquivalents((3, -2)), [(-1, 3), (-2, -1)])
 
-    def test_tipsUpFlatsUp(self):
+    def test_pointsUpFlatsUp(self):
         """Test the pointedEndUp attribute of the fromPitch method.
 
-        .. test:: Build a tips-up and a flats-up hexagonal grids.
+        .. test:: Build a points-up and a flats-up hexagonal grids.
             :id: T_ARMI_GRID_HEX_TYPE
             :tests: R_ARMI_GRID_HEX_TYPE
         """