mention CTAD in std comparison

doc/91_comparison_with_std.qbk

@@ -13,7 +13,7 @@
 
 [table
   []
-  [ [[*`boost::opitonal`]] [[*`std::optional`]] [] ]
+  [ [[*`boost::optional`]] [[*`std::optional`]] [] ]
   [ [`optional<int> o = none;`] [`optional<int> o = nullopt;`] [Different name for no-value tag.] ]
   [ [`optional<X> o {in_place_init, a, b};`] [`optional<int> o {in_place, a, b};`] [Different name for in-place initialization tag.] ]
   [ [] [`optional<vector<int>> o {in_place, {1, 2, 3}};`] [No in-place initialization with initializer-list in `boost`.] ]
@@ -24,6 +24,7 @@
   `optional<T> o {optional<U>{}};`] [`optional<T> o = U{};`
 
   `optional<T> o = optional<U>{}`] [Constructors form `U` and `optional<U>` are explicit in `boost` and implicit in `std`.] ]
+  [ [] [`optional o = 1;`] [No clever deduction of of `optional`'s template parameters in initialization in `boost`. ]]
   [ [`optional<X const&> o;`] [] [No optional references in `std`.] ]
   [ [] [`constexpr optional<int> o;`] [No `constexpr` interface in `boost`.] ]
   [ [`o.map(&f);`
@@ -35,7 +36,7 @@
   [ [`o.value_or_eval(&f);`] [] [No `value_or_eval` function in `std`.] ]
   [ [] [`optional<T>{} == U{}`;
 
-  `opitonal<T>{} == opitonal<U>{}`] [No comparisons with `U` or `optional<U>` in `boost`.] ]
+  `optional<T>{} == optional<U>{}`] [No comparisons with `U` or `optional<U>` in `boost`.] ]
   [ [`make_optional(cond, v);`] [] [No `make_optional` with condition in `std`.] ]
   [ [] [`make_optional<T>(a, b);`] [No `make_optional` with specified `T` in `boost`.] ]
 ]