docs: add footer to all install from binary pages

[braindigitalis]

• My pull request is made against the dev branch.
• I have ensured that the changed library can be built on your target system. I did not introduce any platform-specific code.
• I have ensured that all methods and functions are fully documented using doxygen style comments.
• I tested my commits, by adding a test case to the unit tests if needed
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[Jaskowicz1]

The hyperlink in the footer seems to be broken.

[braindigitalis]

The hyperlink in the footer seems to be broken.

it's already fixed, give netlify time to re-run :)

[Jaskowicz1]

Yep, all good now :)

[Jaskowicz1]

Actually, are the end-lines not required? Some of these pages seem to no longer have them now.