Proofread frontmatter
Fix an error in strings-as-sequences
Fix formatting typo in formatting-strings
Fix formatting typo in integer-character conversion
Capitalize a sentence in `inflecting-strings`
Revert "Capitalize a sentence in `inflecting-strings`"

This reverts commit b376c7eade6ad28a6a876429cda73317594b85b6.
Merge pull request #356 from 0rca/proofread

Proofread "Strings & Characters"