Added changelog

Updated version number (and fixed a typo in the readme)

Fixed bug where multiline strings could cause a panic on certain fonts

Clarified performance considerations in the readme.

Added badges to readme

Edited the documentation

Fixed readme

Updated readme

Fixed some documentation and Cargo.toml settings

Changed Cargo.toml

Added Cargo.lock to gitignore

Changed Cargo.toml

Made line breaks work

Removed Cargo lock from version control

Added pt and px units for font size