[docs] Fix various unresolved references

discord/abc.py

@@ -780,10 +780,10 @@ class GuildChannel(Protocol):
             Whether to move the channel to the end of the
             channel list (or category if given).
             This is mutually exclusive with ``beginning``, ``before``, and ``after``.
-        before: :class:`abc.Snowflake`
+        before: :class:`~discord.abc.Snowflake`
             The channel that should be before our current channel.
             This is mutually exclusive with ``beginning``, ``end``, and ``after``.
-        after: :class:`abc.Snowflake`
+        after: :class:`~discord.abc.Snowflake`
             The channel that should be after our current channel.
             This is mutually exclusive with ``beginning``, ``end``, and ``before``.
         offset: :class:`int`
@@ -793,7 +793,7 @@ class GuildChannel(Protocol):
             while a negative number moves it above. Note that this
             number is relative and computed after the ``beginning``,
             ``end``, ``before``, and ``after`` parameters.
-        category: Optional[:class:`abc.Snowflake`]
+        category: Optional[:class:`~discord.abc.Snowflake`]
             The category to move this channel under.
             If ``None`` is given then it moves it out of the category.
             This parameter is ignored if moving a category channel.

discord/embeds.py

@@ -528,7 +528,7 @@ class Embed:
 
     @property
     def fields(self) -> List[_EmbedFieldProxy]:
-        """Union[List[:class:`EmbedProxy`], :attr:`Empty`]: Returns a :class:`list` of ``EmbedProxy`` denoting the field contents.
+        """List[Union[``EmbedProxy``, :attr:`Empty`]]: Returns a :class:`list` of ``EmbedProxy`` denoting the field contents.
 
         See :meth:`add_field` for possible values you can access.
 

discord/message.py

@@ -1263,8 +1263,8 @@ class Message(Hashable):
     async def reply(self, content=None, **kwargs):
         """|coro|
 
-        A shortcut method to :meth:`abc.Messageable.send` to reply to the
-        :class:`Message`.
+        A shortcut method to :meth:`.abc.Messageable.send` to reply to the
+        :class:`.Message`.
 
         .. versionadded:: 1.6
 
@@ -1280,7 +1280,7 @@ class Message(Hashable):
 
         Returns
         ---------
-        :class:`Message`
+        :class:`.Message`
             The message that was sent.
         """