Updates - Githubissues

Forgot to open this on Friday! This won't affect what has been run so far so no need to start again 👍

Updates to funnel plot function to include text for above the chart (this will require a rebuild before the markdown script is run)
Updates to colour palettes
Rounding values for funnel plot (can this be checked to ensure there isn't anything I've missed)

Public-Health-Scotland / hsmr