Fix formatting building blocks (#3515)

* Fix formatting building blocks

* Fix formatting building blocks

---------

Co-authored-by: Jason Grace <[email protected]>

Author: MrDiver

docs/html

@@ -376,13 +376,13 @@ and :meth:`~.Mobject.get_start`. Here is an example of some important coordinate
 
     class MobjectExample(Scene):
         def construct(self):
-            p1= [-1,-1,0]
-            p2= [1,-1,0]
-            p3= [1,1,0]
-            p4= [-1,1,0]
-            a = Line(p1,p2).append_points(Line(p2,p3).points).append_points(Line(p3,p4).points)
-            point_start= a.get_start()
-            point_end  = a.get_end()
+            p1 = [-1,-1, 0]
+            p2 = [ 1,-1, 0]
+            p3 = [ 1, 1, 0]
+            p4 = [-1, 1, 0]
+            a  = Line(p1,p2).append_points(Line(p2,p3).points).append_points(Line(p3,p4).points)
+            point_start  = a.get_start()
+            point_end    = a.get_end()
             point_center = a.get_center()
             self.add(Text(f"a.get_start() = {np.round(point_start,2).tolist()}", font_size=24).to_edge(UR).set_color(YELLOW))
             self.add(Text(f"a.get_end() = {np.round(point_end,2).tolist()}", font_size=24).next_to(self.mobjects[-1],DOWN).set_color(RED))
@@ -425,8 +425,8 @@ function of numpy:
             self.camera.background_color = WHITE
             m1a = Square().set_color(RED).shift(LEFT)
             m1b = Circle().set_color(RED).shift(LEFT)
-            m2a= Square().set_color(BLUE).shift(RIGHT)
-            m2b= Circle().set_color(BLUE).shift(RIGHT)
+            m2a = Square().set_color(BLUE).shift(RIGHT)
+            m2b = Circle().set_color(BLUE).shift(RIGHT)
 
             points = m2a.points
             points = np.roll(points, int(len(points)/4), axis=0)