add note to requirements to readme

1 files changed, 13 insertions, 0 deletions

diff --git a/README.rst b/README.rst
index 2b6003f..afe5272 100644
--- a/README.rst
+++ b/README.rst
@@ -46,6 +46,17 @@ If the dependencies are in place, simply issue ``omake`` in the
 repository directory and the executable ``context_mirror_bot`` is
 created.
 
+Prerequisites
+*************
+
+The *Context Mirror Bot* assumes an ``unzip(1)`` executable accessible
+from the ``$PATH``. The same goes for standard userland utilities like
+``cp(1)`` and ``rm(1)``. In dubious cases, the `GNU Coreutils`_ are
+assumed the canonical implementation.
+
+It goes without saying that ``git(1)`` must be installed on the system
+as well.
+
 Run
 ***
 
@@ -57,6 +68,7 @@ Currently this presents you with this list of options:
 
 --check         check source timestamps
 --status        print status of local repo
+--sync          sync local repo and remotes
 --update        update from sources
 --prepare       prepare local repository
 --download      download source packages
@@ -121,4 +133,5 @@ under the name ``COPYING``.
 .. _Omake:              http://omake.metaprl.org/index.html
 .. _Philipp Gesang:     mailto:philipp.gesang@alumni.uni-heidelberg.de
 .. _original script:    https://gitorious.org/context/context/source/d493b9c93ad826044bd17889da2ee099c8ed72d5:context_git_update.pl
+.. _GNU Coreutils:      http://www.gnu.org/s/coreutils/