updated readme and added some new prints to part 1 / 2

part1/bob.py

@@ -12,6 +12,8 @@ cipher = AES.new(aes_key, AES.MODE_CBC, iv=b'0'*16)
 with open('ctext', 'rb') as f:
     ciphertext = f.read()
 
+print(f'Ciphertext: {ciphertext}')
+
 plaintext = unpad(cipher.decrypt(ciphertext), 16).decode()
 
 print(f'Plaintext: {plaintext}')