Update reference_documents.md

Author: nseidle

docs/reference_documents.md

@@ -2,11 +2,11 @@
 
 The following datasheets are available for the SparkFun RTK Torch:
 
-* [RTK Torch Schematic](https://github.com/sparkfun/SparkFun_RTK_Torch/tree/main/Datasheets/RTK_Torch_Schematic_v2.1.pdf)
-* [ESP32-WROOM-32UE-N16R2 Microcontroller SOM](../Datasheets/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf)
-* [UM980 GNSS Receiver Datasheet](Datasheets/UM980_Datasheet.pdf)
-* [UM980 GNSS Receiver Commands](Datasheets/Unicore_Reference_Commands_Manual_For_N4_High_Precision_Products_V2_EN_R1_1.pdf)
-* [IM19 Tilt Sensor Integration Guide](Datasheets/IM19_IMU_Tilt_Sensor_IntegrationGuide_v1_3_7.pdf)
+* [RTK Torch Schematic](https://raw.githubusercontent.com/sparkfun/SparkFun_RTK_Torch/main/Datasheets/RTK_Torch_Schematic_v2.1.pdf)
+* [ESP32-WROOM-32UE-N16R2 Microcontroller SOM](https://raw.githubusercontent.com/sparkfun/SparkFun_RTK_Torch/main/Datasheets/esp32-wroom-32e_esp32-wroom-32ue_datasheet_en.pdf)
+* [UM980 GNSS Receiver Datasheet](https://raw.githubusercontent.com/sparkfun/SparkFun_RTK_Torch/main/Datasheets/UM980_Datasheet.pdf)
+* [UM980 GNSS Receiver Commands](https://raw.githubusercontent.com/sparkfun/SparkFun_RTK_Torch/main/Datasheets/Unicore_Reference_Commands_Manual_For_N4_High_Precision_Products_V2_EN_R1_1.pdf)
+* [IM19 Tilt Sensor Integration Guide](https://raw.githubusercontent.com/sparkfun/SparkFun_RTK_Torch/main/Datasheets/IM19_IMU_Tilt_Sensor_IntegrationGuide_v1_3_7.pdf)
 * [IM19 Tilt Sensor Datasheet](Datasheets/IM19_IMU_Tilt_Sensor_v1_1_10.pdf)
 * [MP2762A Charger IC](<../Datasheets/MP2762AGV - Charger IC.pdf>)
 * [BQ40Z50 Battery Pack Manager Datasheet](Datasheets/bq40z50_-_Datasheet.pdf)