manual: Fix typo #1304

Job	Run time
Get-CACerts-Bundle	6s
Prepare-Docs	16s
Test-C-Kermit-Linux-Build	1m 17s
Build-Wart	25s
Build-MinGW64-Linux	3m 47s
Build-VS2003-PSDK2003SP1 (x86, yes)	1m 55s
Build-Open-Watcom-${{ matrix.ver }} (${{ matrix.os.id }})	0s
Build-VS2003-PSDK2003SP1 (x86, no)	1m 32s
Build-VS2005-PSDK2003SP1 (ia64)	1m 39s
Build-VS2010-PSDK71 (ia64)	1m 59s
Build-VS2019 (x86)	2m 22s
Build-VS2022 (x86)	2m 36s
Build-VS2019 (x64)	2m 25s
Build-VS2022 (x64)	2m 45s
Build-VS2019 (x64_arm)	2m 18s
Build-VS2022 (x64_arm)	2m 30s
Build-VS2019 (x64_arm64)	2m 46s
Build-VS2022 (x64_arm64)	2m 40s
Check-Build-Type	11s
Build-Manual-Dist	1m 10s
Build-Manual-Web-Dist	1m 3s
Build-Manual-Web-Pages	1m 5s
Build-Manual-Dist-Vintage	1m 9s
Deploy-Website	30s
Update-os2-Artifact	0s
Update-arm32-Artifact	12s
Update-arm64-Artifact	7s
Update-ia64-Artifact	10s
Update-x86-Artifact	10s
Update-x86-64-Artifact	12s
	39m 17s

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