Update app.py

app.py

@@ -57,7 +57,7 @@ class DisplacementVisualization(RhinoDisplacementPlot):
         ax.plot(times, disp_acc, label='Accelerating Rhino')
         ax.plot(times, disp_const, label='Constant Speed Rhino')
         ax.annotate('Accelerating rhino = 400 m', (self.meeting_time, disp_acc[-1]),
-            textcoords="offset points", xytext=(-60, 10), ha='left')
+            textcoords="offset points", xytext=(-60, 10), ha='center')
         ax.annotate('Constant speed Rhino = 1200 m', (self.meeting_time, disp_const[-1]),
             textcoords="offset points", xytext=(-80, -20), ha='center')
         ax.set_xlabel('Time (s)')