- [gofumpt](https://github.com/hexops/valast/pull/4) is now used to format the output.
- Greatly improved the readability of long struct values when using `String` functions.
- Relaxed Go version requirement from 1.16 to 1.15.
- Other minor typo fixes, docs changes, etc.

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>