Apply suggestions from code review

Co-authored-by: Hugo van Kemenade <[email protected]>

Author: Rajendra1308

Doc/library/imaplib.rst

@@ -207,15 +207,15 @@ An :class:`IMAP4` instance has the following methods:
    Append *message* to a named *mailbox*.
 
    *flags* is a space-separated string containing IMAP flags tokens.
-   System flags defined in :rfc:`3501` are:
 
-   ``\Seen`` - Message has been read.
-   ``\Answered`` - Message has been answered.
-   ``\Flagged`` - Message is "flagged" for urgent/special attention.
-   ``\Deleted`` - Message is "deleted" for removal by later ``EXPUNGE``.
-   ``\Draft`` - Message has not completed composition (marked as a draft).
-   ``\Recent`` - Message is "recently" arrived in this mailbox.
+   System flags defined in :rfc:`RFC 3501 <3501#section-2.3.2>` are:
 
+   * ``\Seen`` - Message has been read.
+   * ``\Answered`` - Message has been answered.
+   * ``\Flagged`` - Message is "flagged" for urgent/special attention.
+   * ``\Deleted`` - Message is "deleted" for removal by later ``EXPUNGE``.
+   * ``\Draft`` - Message has not completed composition (marked as a draft).
+   * ``\Recent`` - Message is "recently" arrived in this mailbox.
 
    *date_time* is the date and time associated with the message.