Add event for BHM discussion

[lparsons]

Description

Checklist:

• I have previewed changes locally or with CircleCI (runs when PR is created)
• I have completed any content reviews, such as getting input from relevant working groups. If no, please note this and wait to post the PR to the #website channel until the content has been settled.

When you are ready for a technical review/merge, post the for the link for the PR in the US-RSE Slack (#website) to ask for reviewers.

[lparsons]

@exoticDFT Could you review for content?

Preview links:

• https://output.circle-artifacts.com/output/job/c21ec285-203e-4605-9ef2-904f687dcb63/artifacts/0/usrse.github.io/events/2025/2025-02-bhm-discussion/index.html
• https://output.circle-artifacts.com/output/job/c21ec285-203e-4605-9ef2-904f687dcb63/artifacts/0/usrse.github.io/events/index.html

[exoticDFT]

Looks good. My only one comment would be it may make sense to include the time with the date in the paragraph section. Although it's at the top with the add to calendar button, it still might be worth mentioning below as well.

[lparsons]

Good call, it's been added.

Preview link: https://output.circle-artifacts.com/output/job/57e4d9fd-b1f8-4a1a-a50a-914c62d58bf5/artifacts/0/usrse.github.io/events/2025/2025-02-bhm-discussion/index.html

@USRSE/usrse-maintainers This is ready for merging. The URL check failures seem temporary to me.

edit: needed a rebase, should all be good but checks are re-running).
edit 2: rebased and checks complete, new URL failure, also temporary (works for me in the browser)