[Latest version of BBEdit](https://www.barebones.com/support/bbedit/notes-14.6.html) supports ligatures once more.
BBEdit no longer requires expert preferences to enable ligatures
TextWrangler is no more – replaced by the unlicenced version of BBEdit.
Update the README files to reflect these changes.
- Corrected a typo in one of the images in Spanish
- Improved the look of one of the images in Spanish
Co-authored-by: Diego Sejas-Viscarra <dsejas.math@m.me>
