Existem diferentes seções das páginas man:
1 General commands 2 System calls 3 C library functions 4 Special files (usually devices, those found in /dev) and drivers 5 File formats and conventions 6 Games and screensavers 7 Miscellanea 8 System administration commands and daemons
git (1) estaria explicando o uso do comando, gittutorial (7) seria informação variada.