fixed typo

app.py

@@ -29,8 +29,8 @@ A = np.zeros((len(sentences),len(sentences)))
 for i in range(len(sentences)):
     for j in range(i):
         st.write("{} \t\t {} \t\t Score: {:.4f}".format(sentences[i], sentences[j], cosine_scores[i][j]))
-        M[i][j] = cosine_scores[i][j]
-        M[j][i] = cosine_scores[i][j]
+        A[i][j] = cosine_scores[i][j]
+        A[j][i] = cosine_scores[i][j]
 
 #G = nx.from_numpy_array(A)
 G = nx.from_numpy_array(cosine_scores.numpy())