annotate docs/README @ 6850:6d22e9a596c4

topic: compatibility for revbranchcache being in a separate module now

The newer revbranchcache defaults to v2, so the name of the cache file is
different. Let's glob and hide it, since its actual contents look the same (at
least for the moment).

Doc is generated with sphinx.

You can generate the doc with:

```
make
```

# Tutorials

For updating the tutorials, you need to have the docgraph extension installed
(https://pypi.python.org/pypi/hg-docgraph).

Then run the test-topic-tutorial.t and test-tutorial.t to update the output if
needed.

You'll need the dot binary (likely installed by the graphviz package in your
package manager) in order to have graphviz graphs rendered in the html output.

Simply run make in the docs directory should takes care of the conversion of
the tutorial .t files into .rst files. Then sphinx should do the rest of the
jobs by rendering graphviz graphs.