rewritten line 166 for chords web recommendation

Author: Harshit Mishra

software/bioamp/muscle-bioamp-arduino-firmware/index.rst

@@ -163,7 +163,7 @@ There are two ways use Gel Electrods or Muscle BioAmp Band.
 
 9. Open Serial Monitor and Serial Plotter (Optional)
 
-   - For visualization, we suggest `Chords Web <https://chords.upsidedownlabs.tech>`_. However, if you're learning to develop, you might also find these options useful.
+   - For serial monitor and plotter, we recommend using `Chords Web <https://chords.upsidedownlabs.tech>`_. However, if you're learning to develop, you might also find these options useful.
 
    - For Serial Monitor: In the IDE, click **Tools → Serial Monitor** (or press ``Ctrl + Shift + M``).
    - Ensure the baud rate at the bottom right of the Serial Monitor is set to ``115200`` (or whatever the sketch’s Serial.begin(115200); line specifies).