Docs: Fix various build warnings:

- /docs/configuration.rst:157: WARNING: Inline emphasis start-string without end-string.
- /docs/configuration.rst:159: WARNING: Inline emphasis start-string without end-string.
- /docs/configuration.rst:159: WARNING: Inline emphasis start-string without end-string.
- /docs/configuration.rst:159: WARNING: Inline emphasis start-string without end-string.
- /docs/rpi_build.rst: WARNING: document isn't included in any toctree

docs/configuration.rst

@@ -154,11 +154,11 @@ optional port number. Those variables are:
 - ``HOST_REDIS``: the container that is running the redis daemon (default: ``redis``)
 - ``HOST_WEBMAIL``: the container that is running the webmail (default: ``webmail``)
 
-The startup scripts will resolve HOST_* to their IP addresses and store the result in *_ADDRESS for further use.
+The startup scripts will resolve ``HOST_*`` to their IP addresses and store the result in ``*_ADDRESS`` for further use.
 
-Alternatively, *_ADDRESS can directly be set. In this case, the values of *_ADDRESS is kept and not
+Alternatively, ``*_ADDRESS`` can directly be set. In this case, the values of ``*_ADDRESS`` is kept and not
 resolved. This can be used to rely on DNS based service discovery with changing services IP addresses.
-When using *_ADDRESS, the hostnames must be full-qualified hostnames. Otherwise nginx will not be able to
+When using ``*_ADDRESS``, the hostnames must be full-qualified hostnames. Otherwise nginx will not be able to
 resolve the hostnames.
 
 

docs/index.rst

@@ -60,6 +60,7 @@ the version of Mailu that you are running.
     dns
     reverse
     database
+    rpi_build
 
 .. toctree::
     :maxdepth: 2