Add tex commands for building command list
Add short description about the section
Add command environment
Add command documentation: mul
Add command documentation: div
Add command documentation: lnot
Add command documentation: land
Add command documentation: lnand
Add command documentation: lor
Add command documentation: lnor
Add command documentation: lxor
Add command documentation: bnot
Add command documentation: band
Add command documentation: bnand
Add command documentation: bor
Add command documentation: bnor
Add command documentation: bxor
Merge pull request #447 from matthiasbeyer/add-command_documentation

Add command documentation