Add connection note (#465)

* Add connection note

* Clarify what happens with mixed uMp rigs

Author: kjy5

docs/home/supported_manipulators.md

@@ -4,9 +4,9 @@ This is a current list of planned and supported manipulators in Ephys Link. If y
 here, we suggest reaching out to your manipulator's manufacturer to request support for Ephys Link. Direct them to
 contact [Kenneth Yang and Daniel Birman](https://virtualbrainlab.org/about/overview.html)!
 
-| Manufacturer | Model                                                   |
-|--------------|---------------------------------------------------------|
-| Sensapex     | <ul> <li>uMp-4</li> <li>uMp-3 (Coming Soon!)</li> </ul> |
-| New Scale    | <ul> <li>Pathfinder MPM Control v2.8+</li> </ul>        |
-| Scientifica  | <ul> <li>InVivoStar (Coming Soon!)</li> </ul>           |
-| LabMaker     | <ul> <li>(Coming Soon!)</li> </ul>                      |
+| Manufacturer | Model                                                  |
+|--------------|--------------------------------------------------------|
+| Sensapex     | <ul> <li>uMp-4</li> <li>uMp-3</li> </ul> |
+| New Scale    | <ul> <li>Pathfinder MPM Control v2.8+</li> </ul>       |
+| Scientifica  | <ul> <li>InVivoStar (Coming Soon!)</li> </ul>          |
+| LabMaker     | <ul> <li>(Coming Soon!)</li> </ul>                     |

docs/usage/starting_ephys_link.md

@@ -59,4 +59,18 @@ More options can be viewed by running `EphysLink.exe -h`.
 ## Python Package
 
 Ephys Link can be invoked from the command line with the same arguments as the standalone executable using the
-`ephys-link` binary (or `el` for short).
+`ephys-link` binary (or `el` for short).
+
+## Platform Notes
+
+### Sensapex
+
+Ephys Link supports both uMp-3 and uMp-4 and will automatically detect which platform you are using. Currently, Ephys
+Link only supports connecting to rigs that use all uMp-3 or uMp-4 manipulators (not both simultaneously). This will be
+determined by the first manipulator Ephys Link connects with in a rig. Ephys Link will close if it detects both types.
+
+### New Scale
+
+Pathfinder MPM is New Scale's control software and Ephys Link communicates with it instead of
+directly with manipulators. Ensure your New Scale manipulators are properly configured with Pathfinder MPM before
+starting Ephys Link.