doc: make the RST files consistently formated and other improvements.

The biggest things here are:
 * move doc/sources/*/README.rst to doc/rtd/topics/datasources
   This gives each datasource a page in the rtd docs, which make
   it easier to read.
 * consistently use the same header style throughout.
   As suggested at
   http://thomas-cokelaer.info/tutorials/sphinx/rest_syntax.html
   use:
     # with overline, for parts
     * with overline, for chapters
     =, for sections
     -, for subsections
     ^, for subsubsections
     “, for paragraphs

Also, move and re-format vendor-data documentation to rtd.

1 files changed, 28 insertions, 0 deletions

diff --git a/doc/rtd/topics/datasources/digitalocean.rst b/doc/rtd/topics/datasources/digitalocean.rst
new file mode 100644
index 00000000..c6f5bc74
--- /dev/null
+++ b/doc/rtd/topics/datasources/digitalocean.rst
@@ -0,0 +1,28 @@
+Digital Ocean
+=============
+
+The `DigitalOcean`_ datasource consumes the content served from DigitalOcean's
+`metadata service`_.  This metadata service serves information about the
+running droplet via HTTP over the link local address 169.254.169.254.  The
+metadata API endpoints are fully described at
+`https://developers.digitalocean.com/metadata/
+<https://developers.digitalocean.com/metadata/>`_.
+
+Configuration
+-------------
+
+DigitalOcean's datasource can be configured as follows:
+
+  datasource:
+    DigitalOcean:
+      retries: 3
+      timeout: 2
+
+- *retries*: Determines the number of times to attempt to connect to the metadata service
+- *timeout*: Determines the timeout in seconds to wait for a response from the metadata service
+
+.. _DigitalOcean: http://digitalocean.com/
+.. _metadata service: https://developers.digitalocean.com/metadata/
+.. _Full documentation: https://developers.digitalocean.com/metadata/
+
+.. vi: textwidth=78