Closes #2205 add previous website links

[ddsjoberg]

@cicdguy and I have been working on the pkgdown site updates. I am now adding back a link to the previous versions of the website. We could keep the menu to what it looked like before, or (and my preference) is to add a small history button on the RHS of the nav bar that links to the historic versions of the website. Thoughts?

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• Place Closes DESCRIPTION file has incorrect version #2204, Closes Add Versions menu to the pkgdown site #2205 into the beginning of your Pull Request Title (Use Edit button in top-right if you need to update)
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[github-actions]

Package	Line Rate	Health
admiral	98%	✔
Summary	98% (4404 / 4473)	✔

[jeffreyad]

Would it be possible to add a link to the dev version of the website?

[ddsjoberg]

Would it be possible to add a link to the dev version of the website?

Yes, we could add it the versions article very easily

[ddsjoberg]

@jeffreyad added dev version link to the versions article

[jeffreyad]

@jeffreyad added dev version link to the versions article

Thanks @ddsjoberg that looks great!

[zdz2101]

Fire away! Won't know how it looks until a full go right?