updates linux console style guide

adds section - open files in web browser
adds contents entry
updates linux console style guide

adds section - open files in web browser
adds contents entry

fixes #24
Merge branch 'update-linux-console-style-guide' of https://github.com/Imnudar/mentor into update-linux-console-style-guide
Merge branch 'Imnudar-update-linux-console-style-guide'