gcm doc fixes
diff --git a/docs/hazmat/primitives/symmetric-encryption.rst b/docs/hazmat/primitives/symmetric-encryption.rst
index 5b249c0..bd9a3f6 100644
--- a/docs/hazmat/primitives/symmetric-encryption.rst
+++ b/docs/hazmat/primitives/symmetric-encryption.rst
@@ -122,7 +122,7 @@
When calling ``encryptor()`` or ``decryptor()`` on a ``Cipher`` object
with an AEAD mode you will receive a return object conforming to the
- ``AEADCipherContext`` interface in addition to the ``CipherContext``
+ ``AEADCipherContext`` interface, in addition to the ``CipherContext``
interface. ``AEADCipherContext`` contains an additional method ``add_data``
for adding additional authenticated by non-encrypted data. You should call
this before calls to ``update``. When you are done call ``finalize()`` to
@@ -134,7 +134,7 @@
:param bytes data: The data you wish to authenticate but not encrypt.
:raises: :class:`~cryptography.exceptions.AlreadyFinalized`
- .. method:: tag
+ .. attribute:: tag
:return bytes: Returns the tag value as bytes.
:raises: :class:`~cryptography.exceptions.NotFinalized`