TechDraw: Update UI strings for consistency

Closes: #22143

src/Mod/TechDraw/TechDrawTools/CommandPositionSectionView.py

@@ -21,7 +21,7 @@
 """
 Provides the TechDraw PositionSectionView GuiCommand.
 00.01 2021/03/17 C++ Basic version
-00.02 2023/12/21 Option to select an edge and it's corresponding vertex
+00.02 2023/12/21 Option to select an edge and its corresponding vertex
 """
 
 __title__ = "TechDrawTools.CommandPositionSectionView"
@@ -50,11 +50,7 @@ class CommandPositionSectionView:
                 'Accel': "",
                 'MenuText': QT_TRANSLATE_NOOP("TechDraw_PositionSectionView", "Position Section View"),
                 'ToolTip': QT_TRANSLATE_NOOP("TechDraw_PositionSectionView",
-                  "Orthogonally align a section view with its source view:<br>\
-                - Select a single section view<br>\
-                - Click this tool<br>\
-                - optional: select one edge in the section view and it's corresponding vertex in the base view<br>\
-                  Click this tool")}
+                  "Aligns the selected section view with its source view orthogonally or the selected edge in the section view to the selected vertex in the base view")}
 
     def Activated(self):
         """Run the following code when the command is activated (button pressed)."""
@@ -113,8 +109,14 @@ class CommandPositionSectionView:
 
     def getTrianglePoint(self,p1,dir,p2):
         '''
-        Get third point of a perpendicular triangle
-        p1, p2 ...vertexes of hypothenusis, dir ...direction of one kathete, p3 ...3rd vertex
+        Calculate the third vertex of a right triangle.
+
+        Parameters:
+        p1, p2 : vertices of the hypotenuse
+        dir    : direction vector of one leg (kathete)
+        
+        Returns:
+        p3 : the third vertex completing the right triangle
         '''
         a = -dir.y
         b = dir.x