X-Git-Url: https://jxself.org/git/?p=ibg.git;a=blobdiff_plain;f=README.md;h=ef81cf5c62255fdd20765380cd9c92898e5b6671;hp=eb05a28441f8bb27bab0be603111494d2d4f604e;hb=0d516f59baf6cdad07fe8f00264da39ddd8b0ebb;hpb=b339390ab1a13e134841cb9b57c7259261c8561f

diff --git a/README.md b/README.md
index eb05a28..ef81cf5 100644
--- a/README.md
+++ b/README.md
@@ -35,12 +35,15 @@ As well as these document sources, you will need:
 * Sphinx.  You can find the complete installation instructions
   [here](http://www.sphinx-doc.org/en/stable/install.html).
 
-* Sphinx makes use of [Blockdiag](https://pypi.python.org/pypi/blockdiag)
-  for some of the diagrams; you'll need that too.
+* [Blockdiag](https://pypi.python.org/pypi/blockdiag) is used for some of
+  the diagrams.
+
+* To create the HTML version, you'll need a recent (>=0.7.8) version of the
+  [Alabaster](https://pypi.python.org/pypi/alabaster) theme.
 
 If you have `pip`, this command will be all you need:
 
-    pip install sphinx blockdiag
+    pip install -U sphinx blockdiag alabaster
 
 After you have everything installed, you can build the HTML version of the
 guide from a command prompt, like this: