Merge pull request #143 from SpiNNakerManchester/doc-xref

Factor out the version of linked docs

doc/source/conf.py

@@ -51,13 +51,18 @@
     'sphinx.ext.intersphinx'
 ]
 
+# Which version of other SpiNNaker docs do we refer to?
+spinnaker_doc_version = "latest"
+
 intersphinx_mapping = {
     'python': ('https://docs.python.org/3.8', None),
     'numpy': ("https://numpy.org/doc/1.20/", None),
     'spinn_utilities': (
-        'https://spinnutils.readthedocs.io/en/latest/', None),
+        f'https://spinnutils.readthedocs.io/en/{spinnaker_doc_version}/',
+        None),
     'spinn_machine': (
-        'https://spinnmachine.readthedocs.io/en/latest/', None),
+        f'https://spinnmachine.readthedocs.io/en/{spinnaker_doc_version}/',
+        None),
 }
 
 # Add any paths that contain templates here, relative to this directory.
@@ -74,7 +79,7 @@
 
 # General information about the project.
 project = u'DataSpecification'
-copyright = u'2014-2021'
+copyright = u'2014'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -294,7 +299,7 @@
 epub_title = u'DataSpecification'
 epub_author = u''
 epub_publisher = u''
-epub_copyright = u'2014-2019'
+epub_copyright = u'2014'
 
 # The basename for the epub file. It defaults to the project name.
 # epub_basename = u'data_allocation'