Add DOE event summary blog post and NIH event recording

[kgkempe]

User Story As a member of the public and federal community, I want to learn more about federal innovation through prize competitions and find out how to register for the webinar series on the Challenge.gov website.

As a member of the federal community, I want to read a summary of the September 2024 Office Hour discussion on the Challenge.gov blog.

Acceptance Criteria

• [x] 9/17 DOE event summary blog page created
• [x] blog link updated on resources page
• [x] add NIH event recording to Events page
• [x] dev team notified for pull request

[kgkempe]

@r-bartlett-gsa GitHub branch is ready for review and PR Blog page preview: https://federalist-2c628203-05c2-48ab-8f87-3eda79380559.sites.pages.cloud.gov/preview/gsa/challenges-and-prizes/kgkempe-2053/blog/2024-10-24-department-of-energy-american-made-program/ Event page preview: https://federalist-2c628203-05c2-48ab-8f87-3eda79380559.sites.pages.cloud.gov/preview/gsa/challenges-and-prizes/kgkempe-2053/events/