Added the article on how to ssh without password
 Changes to be committed:
	new file:   ssh-login-without-password.md
Updated ssh-login-without-password (markdown)
Updated ssh-login-without-password (markdown)
Updated ssh-login-without-password (markdown)
Added two linux command articles
 Changes to be committed:
	new file:   linux/commands/find-command.md
	new file:   linux/commands/tar-command.md
 Fixed markup syntax
 Changes to be committed:
	modified:   linux/commands/find-command.md
	modified:   linux/commands/tar-command.md
Fixed wiki structure
 Changes to be committed:
	modified:   linux/scripts/replacing-values-in-files-using-perl-and-sed.md
	deleted:    replacing-values-in-files-using-perl-and-sed.md
Added the linux/opensuse section and an article about optimizing
opensuse
 Changes to be committed:
	new file:   linux/opensuse/optimizing-opensuse.md
Added the vi article
 Changes to be committed:
	new file:   linux/tools/vi.md