update record template
Merge pull request #63 from duckduckgo/jd/recordUpdate

update record template
remove beta note
remove unnecessary escaped underscore
Remove GFM Table, Markdent doesn't support them
move down base template to match index order
Removed old pictures, added in new template diagrams
Added diagrams to /assets, added links to spice_templates_overview
change img links for testing...
Remove unneeded images
fix image links
New images, removed extra whitespace
add "group" to Spice display overview code snippet
Added icon group, more details for each template