Fix/Improve Java Spec
Fix/Improve Java Spec

Correct a couple minor syntax errors and add an example of an escape
code.

colllin/one-dark-syntax,yuriihabrusiev/one-dark-syntax,yuriihabrusiev/one-dark-syntax,grigio/atom-darkmate-syntax,yuriihabrusiev/one-dark-syntax,vith/one-dark-syntax,colllin/one-dark-syntax,colllin/one-dark-syntax,grigio/atom-darkmate-syntax,colllin/one-dark-syntax,nviel/nico-syntax,yuriihabrusiev/one-dark-syntax,yuriihabrusiev/one-dark-syntax,vith/one-dark-syntax,JeNeSuisPasDave/one-dark-syntax,yuriihabrusiev/one-dark-syntax,JeNeSuisPasDave/one-dark-syntax,JeNeSuisPasDave/one-dark-syntax,grigio/atom-darkmate-syntax,grigio/atom-darkmate-syntax,grigio/atom-darkmate-syntax,vith/one-dark-syntax,colllin/one-dark-syntax,grigio/atom-darkmate-syntax,colllin/one-dark-syntax,vith/one-dark-syntax,vith/one-dark-syntax,nviel/nico-syntax,nviel/nico-syntax,JeNeSuisPasDave/one-dark-syntax,vith/one-dark-syntax,nviel/nico-syntax,JeNeSuisPasDave/one-dark-syntax,JeNeSuisPasDave/one-dark-syntax,nviel/nico-syntax,nviel/nico-syntax