Add links to info about fslpy, data-tree and pipe-tree

I'm submitting a ...

Put an x in the appropriate square brackets

• bug/error report
• feature request

What is the current behaviour?

Some very cool stuff exists on https://open.win.ox.ac.uk/pages/fsl/fslpy/index.html. Could we link to that from the community pages, e.g. under Open Analysis?

Also developments on data-tree and pipe-tree would be wonderful to share!

What is the expected/preferred behaviour?

Submit a merge request to update the Open Analysis page with some blurbs about (and links to):

1. fslpy and conda installation
2. data-tree
3. pipe-tree

What is the motivation / use case for changing the behaviour?

Share these developments!

Other information

Please give any additional detail which may be relevant or useful, for example detailed explanation, stacktraces, related issues, links for us to have context.