Add information about JPKForceSpec.txt to hooke.driver.jpk.__doc__.

Update this if you adjust the driver based on a newer spec, or if JPK
changes their licensing or contact email address.

diff --git a/hooke/driver/jpk.py b/hooke/driver/jpk.py
index 171ce7ab125d8bbfb214d541fa63d3960a340d75..d70fa3cd7f7516c3784d51e848354f1aa531e191 100644 (file)
--- a/hooke/driver/jpk.py
+++ b/hooke/driver/jpk.py
@@ -18,6 +18,9 @@
 # <http://www.gnu.org/licenses/>.
 
 """Driver for JPK ForceRobot's velocity clamp data format.
+
+This driver is based on JPK's :file:`JPKForceSpec.txt` version 0.12.
+The specs are freely available from JPK, just email support@jpk.com.
 """
 
 import os.path