Update repositories.txt

[jmwanderer]

Add a library for Reyax LoRa devices

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/jmwanderer/RYLR_LoRaAT:

Linting library in RYLR_LoRaAT
INFO: No header file found matching library name (RYLR_LoRaAT.h). Best practices are for primary header filename to     
      match library name.                                                                                               
      See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format            
      (Rule LS008)                                                                                                      
WARNING: A commonly misspelled word was found in the library.properties paragraph field. Suggested correction: Configure
         the device and send and receive data messages. Supports the Reyax RYLR998 and RYLR993                          
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format         
         (Rule LP035)                                                                                                   

Linter results for project: 0 ERRORS, 1 WARNINGS

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Linting sketch in RYLR_LoRaAT/examples/HelloPing

Linter results for project: no errors or warnings

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Linting sketch in RYLR_LoRaAT/examples/Ping

Linter results for project: no errors or warnings

-------------------

Linting sketch in RYLR_LoRaAT/examples/Simple

Linter results for project: no errors or warnings

-------------------

Linter results for projects: 0 ERRORS, 1 WARNINGS

[github-actions]

Your submission has now been accepted! Thanks for your contribution to the Arduino Library Manager index.

The library(s) will be available for installation via Library Manager within a day's time.

You can check the logs from the Library Manager indexer for your library(s) here:
http://downloads.arduino.cc/libraries/logs/github.com/jmwanderer/RYLR_LoRaAT/