Make intersphinx linking work (#23)

requirements.txt

@@ -1,4 +1,4 @@
-sphinx==4.3.2
+sphinx==4.4
 sphinx-version-warning==1.1.2
 sphinx-tabs==3.2.0
 sphinx-copybutton==0.4.0

source/manpages/unbound.conf.rst

@@ -130,7 +130,7 @@ These options are part of the **server:** clause.
         and port number), if not specified the default port (from **port**) is used.
 
     ip-address: *<ip address[@port]>*
-        Same as interface: (for ease of compatibility with :file:`nsd.conf`).
+        Same as interface: (for ease of compatibility with :external+nsd:doc:`manpages/nsd.conf`).
 
     interface-automatic: *<yes or no>*
         Listen on all addresses on all (current and future) interfaces, detect the

source/manpages/unbound.rst

@@ -30,13 +30,13 @@ To use a locally running :command:`Unbound` for resolving put
 
 into *resolv.conf(5)*.
 
-If authoritative DNS is needed as well using *nsd(8)*, careful setup is required
+If authoritative DNS is needed as well using :external+nsd:doc:`manpages/nsd`, careful setup is required
 because authoritative nameservers and resolvers are using the same port number
 (53).
 
 The available options are:
 
-.. option:: -h 
+.. option:: -h
 
  Show the version number and commandline option help, and exit.
 
@@ -54,21 +54,22 @@ The available options are:
    given twice or more, logging does not switch to the log file or to syslog,
    but the log messages are printed to stderr all the time.
 
-.. option:: -p  
-   
+.. option:: -p
+
    Don't use a pidfile. This argument should only be used by supervision systems
    which can ensure that only one instance of unbound will run concurrently.
 
-.. option:: -v  
-   
+.. option:: -v
+
    Increase verbosity. If given multiple times, more information is logged. This
    is in addition to the verbosity (if any) from the config file.
 
-.. option:: -V  
-   
+.. option:: -V
+
    Show the version number and build options, and exit.
 
 See Also
 --------
 
-:manpage:`unbound.conf(5)`, :manpage:`unbound-checkconf(8)`, *nsd(8)*.
+:manpage:`unbound.conf(5)`, :manpage:`unbound-checkconf(8)`,
+:external+nsd:doc:`manpages/nsd`.