Update README.md

README.md

@@ -1,3 +1,27 @@
 # py_scilog
 
-Python client for SciLog
+Python client for SciLog
+
+## Examples
+
+### Post to a logbook associated with a pgroup
+
+```python
+from scilog import SciLog
+
+url = "https://lnode2.psi.ch/api/v1"
+pgroup = "p12345"
+
+log = SciLog(url)
+logbooks = log.get_logbooks(ownerGroup=pgroup)
+
+# assume that there is only one logbook per pgroup
+# otherwise we would need to add more filters
+assert len(logbooks) == 1
+logbook = logbooks[0]
+
+log.select_logbook(logbook)
+
+res = log.send_message("<p>from python</p>")
+print(res)
+```