Update repositories.txt

[guerratron]

adding TouchCal v1.0

[github-actions]

Arduino Lint has suggestions for possible improvements to https://github.com/guerratron/TouchCal:

Linting library in TouchCal
WARNING: library.properties depends field item(s) XPT2046_Touchscreen.h not found in the Library Manager index.
         See: https://arduino.github.io/arduino-cli/latest/library-specification/#libraryproperties-file-format
         (Rule LP048)                                                                                          

Linter results for project: 0 ERRORS, 1 WARNINGS

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

Linting sketch in TouchCal/examples/TouchCal_MODES

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/guerratron/TouchCal/

[guerratron]

updated TouchCal properties @ArduinoBot