[doc] add link to pypl2 code

JuliaSprenger · JuliaSprenger · commit 6583ad344395 · 2023-06-28T16:02:28.000+02:00
diff --git a/neo/rawio/plexon2rawio/plexon2rawio.py b/neo/rawio/plexon2rawio/plexon2rawio.py
@@ -1,6 +1,8 @@
 """
 Plexon2RawIO is a class to read Plexon PL2 files.
 
+This IO is based on the pypl2lib module, see https://github.com/NeuralEnsemble/pypl2
+
 On non-windows systems this IO requires Wine, see https://www.winehq.org/
 
 Note on IO performance and memory consumption:
