Update README.md

Improve documentation.

README.md

@@ -6,14 +6,14 @@
 ![Top view on I2C RPM sensor](/doc/img/TFRPM01D.jpg)
 
 ## Overview
-The TFRPM is a device designed for measuring revolutions per minute (RPM) in UAVs. It connects directly to Pixhawk controllers like CUAV V5+ via a standard I²C connector and is compatible with PX4 firmware.
+The TFRPM is designed to measure revolutions per minute (RPM) in UAVs. It connects directly to Pixhawk controllers like CUAV V5+ or Holybro Pixhawk 6X via a [standard I²C connector](https://github.com/pixhawk/Pixhawk-Standards/blob/master/DS-009%20Pixhawk%20Connector%20Standard.pdf) and has the driver in PX4 firmware.
 
 ## Specifications
 
 ### Features
 - **Schmitt Trigger Input**: To shape non-uniform signals from RPM sensing elements.
 - **Self-Counting and Memory**: Offloads the flight controller's MCU.
-- **LED Indicator**: For input status, optionally visible in daylight.
+- **LED Indicator**: Optionally visible in daylight for input status.
 - **Protection**: Short circuit protection on the probe connector.
 - **I²C Connectors**: Pass-through connectors for daisy-chaining sensors.
 - **Design**: Robust and repairable.
@@ -53,7 +53,7 @@ The device can be mounted with or without a provided 3D-printed case.
 
 Compatible with multiple probe types, including Hall effect and optical probes. See the [TFPROBE01](https://github.com/ThunderFly-aerospace/TFPROBE01) and [TFRPM01 documentation](https://docs.thunderfly.cz/avionics/TFRPM01/) for details.
 
-Thirdparty hall probe sensor could be also used, here is example of suitable generic hall probe with mounting fladge.
+Third-party hall probe sensors could be also used, here is an example of a suitable generic hall probe with a mounting flange.
 ![TFRPM01B hall effect magnetic sensor](/doc/img/TFRPM01B_hall_sensor.jpg)
 
 ## Software Configuration