Replaced a missing "not".

[dead/census-tools.git] / doc / project_overview / index.xhtml

diff --git a/doc/project_overview/index.xhtml b/doc/project_overview/index.xhtml
index f7854f8371463e553b756b78444c554fe4f81250..d1544b603165acd09b99a1566422204e3c565af7 100644 (file)
--- a/doc/project_overview/index.xhtml
+++ b/doc/project_overview/index.xhtml
@@ -75,6 +75,22 @@
   </p>
 
   <ol>
+    <li>
+      Most of the application code is written in <a
+      href="http://www.python.org/">Python</a>, and so the Python
+      runtime is required to run it.
+
+      <ol>
+       <li>
+         We utilize a third-party library called <a
+         href="http://pypi.python.org/pypi/Shapely">Shapely</a> for
+         Python/GEOS integration. GEOS is required by PostGIS (see
+         below), so it is not listed as a separate requirement, even
+         though Shapely does depend on it.
+       </li>
+      </ol>
+    </li>
+
     <li>
       The build system utilizes <a
       href="http://www.gnu.org/software/make/">GNU Make</a>. The
@@ -198,8 +214,8 @@
   <p>
     <em>
       Note: the <a href="../../makefile">makefile</a> provides a task
-      for creation/import of the databases, but its use is strictly
-      required.
+      for creation/import of the databases, but its use is not
+      strictly required.
     </em>
   </p>