#85 tabset docs

[Donald Arseneau]

Manual states:
pathName perforation highlight index boolean
pathName perforation invoke index
but actual syntax is
pathName perforation highlight boolean
pathName perforation invoke
(setting applies to all tabs)

(A reference to the -tearoff option would go well
there; and an actual short description of -tearoff
would be good too :-)

The html documentation gives examples

.ts tab configure "f1" -label "Tab #1"
.ts insert end "f2" -label "Tab #2" "f3" "f4"

but they should use -text. (There is no such example
in the man pages.)

I guess I don't have to mention that there is no
documentation for tabnotebook :-)

What are the original sources for the docs anyway? I
could submit proposed patches for such simple things as
this.