🔗 Fix install URLs

[Jamim]

Hello everyone,

I hope you'll find these changes useful.

Best regards!

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: Jamim / name: Aliaksei Urbanski (63fd6b7)

[cary-ilm]

Thank you for the fixes! You might have seen that we recently added a similar reference to openexr, including an inline badge from repology listing the current versions. I was going to make a similar addition here but you've done it already, thanks!

Could I ask you to mirror that here, with some slight modifications? I like the badge/table better than the list of Fedora, Gentoo, and Ubuntu, and the comment about out-of-date distributions applies to OpenEXR than to Imath, although it does warrant a reference to ilmbase. And homebrew is up to date now, too, so that comment should be struck.

Suggested change

	`Imath's page on Repology
	Refer to the current version of Imath on various major Linux distros at
	`repology.org <https://repology.org/project/imath/versions>`_:
	.. image:: https://repology.org/badge/vertical-allrepos/imath.svg?exclude_unsupported=1&columns=4&header=Imath%20Packaging%20Status&minversion=3.0
	:target: https://repology.org/project/imath/versions
	Older versions of Imath were distributed as a component of OpenEXR
	called ``ilmbase``. We do not recommend using these outdated
	versions.
	To install via ``yum`` on RHEL/CentOS:
	.. code-block::
	% sudo yum makecache
	% sudo yum install imath
	To install via ``apt-get`` on Ubuntu:
	.. code-block::
	% sudo apt-get update
	% sudo apt-get install imath
	macOS
	-----
	On macOS, install via `Homebrew <https://formulae.brew.sh/formula/imath>`_:
	.. code-block::
	% brew install imath
	Alternatively, you can install on macOS via `MacPorts
	<https://ports.macports.org/port/imath>`_:
	.. code-block::
	% port install imath
	Windows
	-------
	Install via `vcpkg <https://vcpkg.io/en/packages>`_:
	.. code-block::
	% .\vcpkg install imath

[Jamim]

Hello @cary-ilm,

Thank you for the suggestion! 🙇🏼
I've applied it with minor adjustments.

You might have seen that we recently added a similar reference to openexr, including an inline badge from repology listing the current versions.

No, I haven't 😄
I just noticed that the link to the Gentoo package is broken while I was working on gentoo/gentoo#35188. So I assumed it's worth checking other links. And I also decided to replace pkgs.org with Repology since it has a much broader coverage.

[cary-ilm]

Perfect, thanks!