alignment padding is applied based on the next column's data type,
so, for example, we cannot state that for "boolean" (1 byte of
data), the alignment is not needed. This commit fixes the logic
in the doc.
Update ordering_table_columns.md
Typos fixed
more polishing of text
Minor improvements of text style
Get rid of two "following" words in one line, having different meanings
More text style polishing according @eread's comments
