Slides/178 minor typos #2029

Job	Run time
List-Courses	5s
Contrib scripts check	1m 23s
Labs-Slides	1m 5s
Labs (ubuntu-latest)	53s
Python scripts black lint check	6s
Slides (static_analysis_via_compiler)	1m 11s
Slides (fundamentals_of_ada)	9m 51s
Slides (gnat_project_facility)	1m 36s
Slides (gnat_studio)	1m 27s
Slides (toolchain)	2m 13s
Slides (gnatsas)	3m 19s
Slides (gnatdas)	3m 4s
Slides (spark_for_ada_programmers)	3m 2s
Slides (advanced_exception_analysis)	1m 6s
Slides (fundamentals_of_ada/opat.txt)	2m 4s
Slides (fundamentals_of_ada/standard_course.txt)	2m 4s
Slides (fundamentals_of_ada/advanced.txt)	1m 56s
Slides (gnat_project_facility/standard_course.txt)	1m 12s
Slides (gnat_studio/course.txt)	1m 11s
Slides (toolchain/gnat_toolchain.txt)	1m 10s
Slides (spark_for_ada_programmers/course.txt)	1m 44s
	41m 42s

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