Update F8 and F16 in funding_opportunities.md

[paigem]

Update F.8 and F.16 summaries per the amendments from 20 October 2023

[paigem]

Tagging @RPaseka for review

[paigem]

Also tagging @jlgalache for review

[RPaseka]

This looks good to me -- thanks for the update @paigem

[bressler95tops]

Hi @paigem. So recently @nasacrawford (Steve) and I did some history rewriting on this repository for clean up purposes. Your fork may be okay but just as a precaution we are asking that people with forks from before a certain time period do the following:

1. Delete your current fork
2. Create a new one
3. Copy over your changes that you wanted to make to your new fork
4. Close this pull request and open a new one from your new fork

Alternatively, if you were to rebase properly, that could work but making a new fork would be much simpler. Thanks, hope it's not too much trouble for you since it looks like you had modified just one file. After this you would be good to go to keep using your new fork.

[bressler95tops]

I know you are pretty familiar with these things but in case it is helpful:

Deleting your fork: Link here

Then you would click the fork button at the top of our repo to make a new one.