Update app.py

app.py

@@ -18,7 +18,7 @@ class Vector_Addition:
         v3_text = f'The new vector 3 produced = vector 1: {self.v1} + vector 2: {self.v2} = {v3}'
         return v3_text
 
-     def plot_vector_add(self):
+    def plot_vector_add(self):
         plt.figure(figsize=(10,5))
         plt.plot([0, self.v1[0]], [0, self.v1[1]], 'b', label='v1')
         plt.plot([0, self.v2[0]], [0, self.v2[1]], 'r', label='v2')