Fix testimonial featured link href

[dnsge]

Description

Fixes the testimonials present at the bottom of https://podman.io to have working links.

Currently, every featured link points to https://podman.io/%7Bprops.featuredlink%7D.

As a side note, I noticed that the Tweet for the first testimonial on the page has since been deleted, so someone may want to find another testimonial to replace that one at some point.

Steps to Reproduce

1. Navigate to https://podman.io
2. Scroll to the "What people are saying about Podman" section
3. Click on one of the featured links in one of the testimonies, e.g. the GitHub link in Fang-Pen Lin's tweet.
4. Notice that we navigate to https://podman.io/%7Bprops.featuredlink%7D instead of the tweet

Video:

Screen.Recording.2023-08-21.at.10.58.45.AM.mov

[cgiradkar]

thanks for the PR.
@dnsge do you have any way to reproduce this issue?

[dnsge]

@cgiradkar Sure. I've updated the base comment with these steps too.

Steps to Reproduce

1. Navigate to https://podman.io
2. Scroll to the "What people are saying about Podman" section
3. Click on one of the featured links in one of the testimonies, e.g. the GitHub link in Fang-Pen Lin's tweet.
4. Notice that we navigate to https://podman.io/%7Bprops.featuredlink%7D instead of the tweet

Video:

Screen.Recording.2023-08-21.at.10.58.45.AM.mov

[TomSweeneyRedHat]

@mairin FYI

[cgiradkar]

@mairin is this the same as #122 ?

[rhatdan]

Can we close this PR?

[cgiradkar]

LGTM