Update documentation of capital indicators
Update documentation of capital indicators

Thanks to Bue for the patch

Fixes #193

hammera/liblouis,IndexBraille/liblouis,BueVest/liblouis,vsmontalvao/liblouis,hammera/liblouis,hammera/liblouis,liblouis/liblouis,liblouis/liblouis,vsmontalvao/liblouis,IndexBraille/liblouis,liblouis/liblouis,vsmontalvao/liblouis,liblouis/liblouis,vsmontalvao/liblouis,hammera/liblouis,IndexBraille/liblouis,hammera/liblouis,liblouis/liblouis,BueVest/liblouis,BueVest/liblouis,vsmontalvao/liblouis,BueVest/liblouis,hammera/liblouis,IndexBraille/liblouis,BueVest/liblouis,liblouis/liblouis,BueVest/liblouis,IndexBraille/liblouis