Update signal.rst

Author: LamentXU123

Doc/library/signal.rst

@@ -205,12 +205,6 @@ The variables defined in the :mod:`signal` module are:
 
    .. availability:: Unix.
 
-.. data:: SIGPROF
-
-   Profiling timer expired.
-
-   .. availability:: Unix.
-
 .. data:: SIGQUIT
 
    Terminal quit signal.
@@ -253,6 +247,12 @@ The variables defined in the :mod:`signal` module are:
 
    .. availability:: Unix.
 
+.. data:: SIGPROF
+
+   Profiling timer expired.
+
+   .. availability:: Unix.
+
 .. data:: SIGVTALRM
 
    Virtual timer expired.
@@ -265,12 +265,18 @@ The variables defined in the :mod:`signal` module are:
 
    .. availability:: Unix.
 
+.. data:: SIGXCPU
+
+   CPU time limit exceeded.
+
+   .. availability:: Unix.
+
 .. data:: SIG*
 
    All the signal numbers are defined symbolically.  For example, the hangup signal
    is defined as :const:`signal.SIGHUP`; the variable names are identical to the
    names used in C programs, as found in ``<signal.h>``.  The Unix man page for
-   '``signal``' lists the existing signals (on some systems this is
+   ':c:func:`!signal`' lists the existing signals (on some systems this is
    :manpage:`signal(2)`, on others the list is in :manpage:`signal(7)`). Note that
    not all systems define the same set of signal names; only those names defined by
    the system are defined by this module.
@@ -666,8 +672,9 @@ The :mod:`signal` module defines the following functions:
    *sigset*.
 
    The return value is an object representing the data contained in the
-   ``siginfo_t`` structure, namely: ``si_signo``, ``si_code``,
-   ``si_errno``, ``si_pid``, ``si_uid``, ``si_status``, ``si_band``.
+   :c:type:`siginfo_t` structure, namely: :attr:`!si_signo`, :attr:`!si_code`,
+   :attr:`!si_errno`, :attr:`!si_pid`, :attr:`!si_uid`, :attr:`!si_status`,
+   :attr:`!si_band`.
 
    .. availability:: Unix.