docs: Add security.md to readthedocs

SECURITY.md

@@ -50,8 +50,8 @@ determined time for disclosure has arrived the following will occur:
 * An email is sent to the [public cloud-init mailing list](https://lists.launchpad.net/cloud-init/)
 
 The disclosure timeframe is coordinated with the reporter and members of the
-  cloud-init-security list. This depends on a number of factors:
-  
+cloud-init-security list. This depends on a number of factors:
+
 * The reporter might have their own disclosure timeline (e.g. Google Project
   Zero and many others use a 90-days after initial report OR when a fix
   becomes public)

doc-requirements.txt

@@ -0,0 +1,4 @@
+doc8
+m2r
+sphinx
+sphinx_rtd_theme

doc/rtd/conf.py

@@ -28,6 +28,7 @@
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = [
+    'm2r',
     'sphinx.ext.autodoc',
     'sphinx.ext.autosectionlabel',
     'sphinx.ext.viewcode',

doc/rtd/index.rst

@@ -67,6 +67,7 @@ Having trouble? We would like to help!
    :caption: Development
 
    topics/hacking.rst
+   topics/security.rst
    topics/debugging.rst
    topics/logging.rst
    topics/dir_layout.rst

doc/rtd/topics/security.rst

@@ -0,0 +1,5 @@
+.. _security:
+
+.. mdinclude:: ../../../SECURITY.md
+
+.. vi: textwidth=78

tox.ini

@@ -55,9 +55,7 @@ exclude = .venv,.tox,dist,doc,*egg,.git,build,tools
 [testenv:doc]
 basepython = python3
 deps =
-    doc8
-    sphinx
-    sphinx_rtd_theme
+    -r{toxinidir}/doc-requirements.txt
 commands =
     {envpython} -m sphinx {posargs:doc/rtd doc/rtd_html}
     doc8 doc/rtd