Test

Remove intro sentence (testing llm rules) #1402

Job	Run time
test_course_definition / lint	1m 4s
test_course_definition / identify_language_slugs	4s
test_course_definition / validate-schemas	23s
test_course_definition / test_stage_descriptions	47s
test_course_definition / verify_templates_compiled	23s
test_course_definition / validate-stages-naming	6s
test_course_definition / test (c)	1m 35s
test_course_definition / test (clojure)	3m 20s
test_course_definition / test (csharp)	1m 17s
test_course_definition / test (cpp)	3m 9s
test_course_definition / test (elixir)	1m 16s
test_course_definition / test (java)	2m 31s
test_course_definition / test (go)	2m 1s
test_course_definition / test (gleam)	51s
test_course_definition / test (haskell)	5m 18s
test_course_definition / test (kotlin)	4m 58s
test_course_definition / test (ocaml)	3m 49s
test_course_definition / test (rust)	1m 48s
test_course_definition / test (ruby)	46s
test_course_definition / test (swift)	4m 32s
test_course_definition / test (scala)	4m 29s
test_course_definition / test (javascript)	39s
test_course_definition / test (zig)	1m 14s
test_course_definition / test (php)	48s
test_course_definition / test (typescript)	1m 5s
test_course_definition / test (odin)	1m 38s
test_course_definition / test (python)	56s
test_course_definition / test (crystal)	1m 3s
	51m 50s

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