Improve homepage of photon-mosaic website

[lauraporta]

Description

What is this PR

• Bug fix
• Addition of a new feature
• Other

Why is this PR needed?
Add logo, illustrations, improve description in the readme and homepage.

Note that after merging this PR documentation still needs major improvements. This is meant to be only for the homepage.

What does this PR do?
Adds figures, edits docs/source/ files and README.md

References

#27

How has this PR been tested?

Local build of website

Is this a breaking change?

No

Does this PR require an update to the documentation?

No

Checklist:

• The code has been tested locally
• Tests have been added to cover all new functionality
• The documentation has been updated to reflect any changes
• The code has been formatted with pre-commit

[sumiya-kuroda]

I think the link to CASCADE can be the one to the original repo
Sorry I was looking at the outdated commtit! LGTM!

[adamltyson]

Looks nice, just a few small comments.

[lauraporta]

@adamltyson thanks for the comments. I've edited the illustration and expanded the explanations in the body. Let me know if it reads better to you now. I'll merge then.

[adamltyson]

Looks good, only two final comments:

• The colon in the bullet points are a bit strange
• I would also link to the issues etc in the final sentance. The current link implies that the contributing guide has something to do with raising issues.

[lauraporta]

I like the colon in the bullet point 😅
I brought back the last sentence with a link to the issues and also the project board 😀
Merging as the tests are completed

[adamltyson]

I like the colon in the bullet point 😅

It doesn't make sense though!

[lauraporta]

@adamltyson I've made the suggested edits on formatting and contributing guidelines

[adamltyson]

Very nice. LGTM!

[adamltyson]

Random point - if the neuropil subtraction from the allenSDK is adopted (as per the "Planned additions" section), it will need to be vendored as that package isn't maintained anymore.

[lauraporta]

@adamltyson yes correct that's the plan!