Remove emoji from technical documentation #2584

Job	Run time
Style check (Lua)	34s
Style check (Python)	15s
Style check (Markdown)	47s
Style check (Bash)	9s
Type check (Python)	30s
Build Docker image (TL2022-historic)	11m 2s
Build Docker image (latest)	11m 15s
Build Docker image (latest-pretest)	14m 42s
Test Docker image (TL2022-historic)	26m 1s
Test Docker image (latest)	26m 39s
Test Docker image (latest-pretest)	28m 45s
Publish Docker image (TL2022-historic)	2m 5s
Publish artefacts and create a prerelease (TL2022-historic)	1m 27s
Automatically merge pull request	0s
Publish Docker image (latest)	2m 18s
Publish artefacts and create a prerelease (latest)	10m 48s
Publish Docker image (latest-pretest)	4m 30s
Publish artefacts and create a prerelease (latest-pretest)	1m 51s
	2h 23m 38s

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