fix #245 ask like doc

[theludovyc]

fix #245

Now ask is same as the one in the documention

Plus you can respect or not the number of space between the '=' and '?'
answer = ? "question" is correct
answer=?"question" is also correct

But you should respect spaces between tag, question, and default answer
answer=?tag "question" "default answer" is correct
answer=?tag"question""default answer" is not