Fix typos in Docs directory #11282

Job	Run time
htmldocs	25m 58s
cppcheck	2m 7s
package-arch (debian:bullseye)	29m 1s
package-indep (debian:bullseye)	43m 4s
package-arch (debian:bookworm)	30m 8s
package-indep (debian:bookworm)	33m 53s
rip-and-test	27m 10s
package-arch (debian:sid)	31m 50s
rip-and-test-clang	26m 50s
package-indep (debian:sid)	39m 58s
	4h 49m 59s

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