[MIRROR] Updates the modularization guide with TGUI instructions #2547

Job	Run time
Run Linters	2m 49s
Collect data for other tasks	13s
Compile Maps	3m 14s
Windows Build	2m 9s
Check Alternate Tests	0s
Integration Tests (birdshot) / run_integration_tests	11m 11s
Integration Tests (blueshift) / run_integration_tests	12m 20s
Integration Tests (deltastation) / run_integration_tests	11m 37s
Integration Tests (gateway_test) / run_integration_tests	12m 42s
Integration Tests (icebox) / run_integration_tests	11m 45s
Integration Tests (metastation) / run_integration_tests	11m 1s
Integration Tests (kilostation2) / run_integration_tests	11m 4s
Integration Tests (multiz_debug) / run_integration_tests	10m 42s
Integration Tests (northstar) / run_integration_tests	12m 27s
Integration Tests (nssjourney) / run_integration_tests	11m 7s
Integration Tests (runtimestation) / run_integration_tests	9m 39s
Integration Tests (tramstation) / run_integration_tests	11m 20s
Integration Tests (voidraptor) / run_integration_tests	11m 11s
Compare Screenshot Tests	1m 34s
	2h 38m 5s

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