add some docs in Markdown
default css for docs
minor edits
Merge branch 'master' into development
add dict_default to set default values in a dictionary
Merge remote branch 'origin' into development
EoD commit
Merge branch 'development' of github.com:qcode-software/qcode-tcl into development
Created image_combo widget
Merge branch 'fileCombo' into development
Import min max functions from ::tcl::mathfunc, add utils for levenshtein distance