Updating info on partnership offer plus minor tidy up

[jen-machin]

Overview of changes

The partnership programme section was previously very short and has now been updated to include more details about the new offer

Why are these changes being made?

The aim is that Delphine can use this page to send to teams and encourage them to participate, or that so teams can see it themselves and be more likely to engage with our offer because they understand it better.

Issue ticket number/s and link

#90

Checklist before requesting a review

• I have checked the contributing guidelines
• I have checked for and linked any relevant issues that this may resolve
• I have checked that these changes build locally
• I understand that if merged into main, these changes will be publicly available

[jen-machin]

Analysts Guide: update partnerships section

[lauraselby]

I've left some comments, looks helpful though!
Interested in Cam's view for how much he wants the dashboards partnerships included here (which his team might lead on) so worth letting him have a skim.

[cjrace]

Left some thoughts / comments - also generally agree with almost everything @lauraselby said too!