Copy and external branding updates as per comms team updates.

modified:   _data/serving.yml
modified:   css/application.css
modified:   images/digital-missions/dm-chop.png
modified:   images/digital-missions/dm-chop.svg
modified:   images/digital-missions/dm-churchmetrics.png
modified:   images/digital-missions/dm-churchmetrics.svg
modified:   images/digital-missions/dm-developme.png
modified:   images/digital-missions/dm-developme.svg
modified:   images/digital-missions/dm-open.png
modified:   images/digital-missions/dm-open.svg
modified:   images/equipping-churches/ec-chop.png
modified:   images/equipping-churches/ec-chop.svg
modified:   images/equipping-churches/ec-churchmetrics.png
modified:   images/equipping-churches/ec-churchmetrics.svg
modified:   images/equipping-churches/ec-developme.png
modified:   images/equipping-churches/ec-developme.svg
modified:   images/equipping-churches/ec-network.jpg
modified:   images/equipping-churches/ec-network.png
modified:   images/equipping-churches/ec-network.svg
modified:   images/equipping-churches/ec-network@2x.jpg
modified:   images/equipping-churches/ec-open.jpg
modified:   images/equipping-churches/ec-open.png
modified:   images/equipping-churches/ec-open.svg
modified:   images/equipping-churches/ec-open@2x.jpg
modified:   pages/beliefs.html
modified:   pages/digital-missions.html
modified:   pages/kids.html
modified:   pages/restore.html
modified:   pages/tools.html
modified:   pages/what-to-expect.html
modified:   pages/who-we-are.html
modified:   scss/bitters/_typography.scss