pzemac.md, fix style issues

Author: rmie

content/components/sensor/pzemac.md

@@ -157,9 +157,9 @@ modbus_controller:
 
 ![PZEM-004T-100A-D-P(V1.0)](images/pzem-004t-100a-d-p-v1.0.jpg)
 
-* The silkscreen marking implies V1.0 which might mislead to try using {{< docref "pzem004t/" >}}.
-* One noteable difference to other boards is the 5 pin connection labeled _5V_, _RX_, _TX_, _CF_, _GND_
-* Seems to work when supplied with 3.3V on the 5V pin, at least over a few centimeters of wire.
+- The silkscreen marking implies V1.0 which might mislead to try using {{< docref "pzem004t/" >}}.
+- One noteable difference to other boards is the 5 pin connection labeled *5V*, *RX*, *TX*, *CF*, *GND*.
+- Seems to work when supplied with 3.3V on the 5V pin, at least over a few centimeters of wire.
   No need for level shifter or resistor change, etc. in this case.
 
 ## See Also