Rearrange table examples

Rearrange table examples to include the irregular tables example one as
example two on the page about simple tables.
Also add scope to the delivery slots example.
Change intro text.
Add possibility to use fragments in URLs in the changelog

Linking precisely!
Expand example 1 with an approach that uses scope
Style changes caption
Remove Example 1 (header cells in columns)
Expand month names in table
Update changelog