Fix typos in TD and FEM source comments/documentation [skip ci]

src/Mod/TechDraw/App/DrawComplexSection.cpp

@@ -413,7 +413,7 @@ TopoDS_Shape DrawComplexSection::makeAlignedPieces(const TopoDS_Shape &rawShape,
         TopoDS_Shape pieceRotated = mkTransRotate.Shape();
 
         //align a copy of the piece with OXYZ so we can use bounding box to get
-        //width, depth, height of the piece. We copy the piece so the tranformation
+        //width, depth, height of the piece. We copy the piece so the transformation
         //does not affect the original.
         BRepBuilderAPI_Copy BuilderPieceCopy(pieceRotated);
         TopoDS_Shape copyPieceRotatedShape = BuilderPieceCopy.Shape();

src/Mod/TechDraw/App/DrawViewPart.cpp

@@ -1006,7 +1006,7 @@ bool DrawViewPart::hasGeometry(void) const
     return false;
 }
 
-//convert a vector in local XY coords into a coordinate sytem in global
+//convert a vector in local XY coords into a coordinate system in global
 //coordinates aligned to the vector.
 //Note that this CS may not have the ideal XDirection for the derived view
 //(likely a DrawViewSection) and the user may need to adjust the XDirection