Fix grammar

Adds Oxford comma

Author: santaimpersonator

flex_boards/SparkPNT_GNSS_Flex_Module_LG290P-Tilt/docs/hardware_overview.md

@@ -26,7 +26,7 @@
 	??? info "Tilt Compensation"
 		The IM19 IMU from Feyman (FMI) fuses MEMS sensor and GNSS RTK positioning data to deliver high-precision attitude measurement, with roll and pitch accurate to within 0.05 degrees. This kind of superb accuracy has widespread uses in industrial applications such as tilt RTK surveys (where RTK poles need not be held straight vertical as the IM19 can calculate a virtual digital level at any tilt angle), agriculture machine automation, and dead reckoning.
 
-		When configured, fed with the LG290P Pulse-Per-Second signal and NMEA GGA, RMC and GST messages, and calibrated, the IM19 will output proprietary NMEA messages containing the compensated position and roll, pitch and yaw. By default, the LG290P `COM3` `TX` is linked to the IM19 `UART2` `RX` to carry the required NMEA messages. However, this can be changed via jumper links on the Flex Module, if necessary.
+		When configured, fed with the LG290P Pulse-Per-Second signal and NMEA GGA, RMC, and GST messages; once calibrated, the IM19 will output proprietary NMEA messages containing the compensated position and roll, pitch and yaw. By default, the LG290P `COM3` `TX` is linked to the IM19 `UART2` `RX` to carry the required NMEA messages. However, this can be changed via jumper links on the Flex Module, if necessary.
 
 
 -   SparkPNT GNSS Flex modules are plug-in boards featuring different GNSS receivers. They are designed to be easily swapped for repairs and pin-compatible for upgrades. The boards have two 2x10-pin, 2mm pitch female headers connecting to carrier boards. For the LG290P GNSS receiver, these pins will break out the UART (x2) and I^2^C* interfaces, along with the PPS and event signals using a standardized pinout. Additionally, these pins break out the two UART interfaces of the IM19 IMU.
@@ -459,7 +459,7 @@ The accuracy of the position reported from the LG290P GNSS receiver, can be impr
 ## IM19 IMU *(Optional)*
 The other centerpiece of the GNSS Flex module is the [IM19 attitude module](../assets/component_documentation/IM19EI_v1.4.1.pdf) from [Feyman Inc.](http://feymani.com/en/), which fuses MEMS sensor and GNSS RTK positioning data to deliver high-precision attitude measurement, with roll and pitch accurate to within 0.05 degrees. This kind of superb accuracy has widespread uses in industrial applications such as tilt RTK surveys (where RTK poles need not be held straight vertical as the IM19 can calculate a virtual digital level at any tilt angle), agriculture machine automation, and dead reckoning.
 
-When configured, fed with the LG290P Pulse-Per-Second signal and NMEA GGA, RMC and GST messages, and calibrated, the IM19 will output proprietary NMEA messages containing the compensated position and roll, pitch and yaw. By default, the LG290P `COM3` `TX` is linked to the IM19 `UART2` `RX` to carry the required NMEA messages. However, this can be changed via jumper links on the Flex Module, if necessary.
+When configured, fed with the LG290P Pulse-Per-Second signal and NMEA GGA, RMC, and GST messages; once calibrated, the IM19 will output proprietary NMEA messages containing the compensated position and roll, pitch and yaw. By default, the LG290P `COM3` `TX` is linked to the IM19 `UART2` `RX` to carry the required NMEA messages. However, this can be changed via jumper links on the Flex Module, if necessary.
 
 
 

flex_boards/SparkPNT_GNSS_Flex_Module_ZED-X20P-Tilt/docs/hardware_overview.md

@@ -51,7 +51,7 @@
 	???+ info "Optional IM19 Attitude Module"
 		The optional, IM19 attitude module from Feyman (FMI) fuses MEMS IMU sensor data and GNSS RTK positioning to deliver high-precision attitude compensated measurements, with roll and pitch accurate to within 0.05 degrees. This kind of superb accuracy has widespread uses in industrial applications such as tilt RTK surveys (where RTK poles need not be held straight vertical as the IM19 can calculate a virtual digital level at any tilt angle), agriculture machine automation, and dead reckoning.
 
-		When configured, fed with the ZED-X20P Pulse-Per-Second signal and NMEA GGA, RMC and GST messages; once calibrated, the IM19 will output proprietary NMEA messages containing the compensated position and roll, pitch and yaw. By default, the ZED-X20P `UART1` `TX` is linked to the IM19 `UART2` `RX` to carry the required NMEA messages. However, this can be changed via jumper links on the Flex Module, if necessary.
+		When configured, fed with the ZED-X20P Pulse-Per-Second signal and NMEA GGA, RMC, and GST messages; once calibrated, the IM19 will output proprietary NMEA messages containing the compensated position and roll, pitch and yaw. By default, the ZED-X20P `UART1` `TX` is linked to the IM19 `UART2` `RX` to carry the required NMEA messages. However, this can be changed via jumper links on the Flex Module, if necessary.
 
 
 	!!! note
@@ -502,7 +502,7 @@ The accuracy of the position reported from the ZED-X20P GNSS receiver, can be im
 ## IM19 IMU *(Optional)*
 The other centerpiece of the GNSS Flex module is an optional [IM19 attitude module](../assets/component_documentation/IM19EI_v1.4.1.pdf) from [Feyman Inc.](http://feymani.com/en/). Users have the option to purchase a board variant that comes populated with the IM19 attitude module, which fuses MEMS IMU sensor data and GNSS RTK positioning to deliver high-precision attitude compensated measurements, with roll and pitch accurate to within 0.05 degrees. This kind of superb accuracy has widespread uses in industrial applications such as tilt RTK surveys (where RTK poles need not be held straight vertical as the IM19 can calculate a virtual digital level at any tilt angle), agriculture machine automation, and dead reckoning.
 
-When configured, fed with the ZED-X20P Pulse-Per-Second signal and NMEA GGA, RMC and GST messages; once calibrated, the IM19 will output proprietary NMEA messages containing the compensated position and roll, pitch and yaw. By default, the ZED-X20P `UART1` `TX` is linked to the IM19 `UART2` `RX` to carry the required NMEA messages. However, this can be changed via jumper links on the Flex Module, if necessary.
+When configured, fed with the ZED-X20P Pulse-Per-Second signal and NMEA GGA, RMC, and GST messages; once calibrated, the IM19 will output proprietary NMEA messages containing the compensated position and roll, pitch and yaw. By default, the ZED-X20P `UART1` `TX` is linked to the IM19 `UART2` `RX` to carry the required NMEA messages. However, this can be changed via jumper links on the Flex Module, if necessary.
 
 
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