fix navigation link and add back logo

[TessFerrandez]

Fixes a navigation problem where a section was added multiple times
Adds back a logo that went missing

[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	1		0	0.01s
✅ MARKDOWN	markdownlint	1		0	0.4s
✅ MARKDOWN	markdown-table-formatter	1		0	0.23s
✅ MDLINKCHECK	linkcheck	1		0	0.11s
✅ SPELL	cspell	3		0	1.66s
✅ YAML	prettier	1		0	0.49s
✅ YAML	yamllint	1		0	0.24s

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