falta config o nome e email ; abaixo segue o exemplo da minha tela ;
Changes to be committed: (use "git rm --cached ..." to unstage) new file: index.html
Tomas@Tomas-PC MINGW64 ~/Desktop/curso Java/Git e Github (master) $ git commit -m "Criando arquivo index.html com lista de cursos" Author identity unknown
*** Please tell me who you are.
Run
git config --global user.email "you@example.com" git config --global user.name "Your Name"
to set your account's default identity. Omit --global to set the identity only in this repository.
fatal: unable to auto-detect email address (got 'Tomas@Tomas-PC.(none)')
Tomas@Tomas-PC MINGW64 ~/Desktop/curso Java/Git e Github (master) $