add more docs

Author: lrvideckis

library/math/matrix_related/xor_basis_ordered.hpp

@@ -5,6 +5,7 @@
 //!   basis_ordered<int> b1;
 //!   basis_ordered<ll> b2;
 //!   basis_ordered<bitset<lg>> b3;
+//!   b2.insert(x); // 0 <= x < (1LL<<lg)
 //! @endcode
 //! @time O(lg)
 //! @space O(lg)

tests/.config/.cppcheck_suppression_list

@@ -62,4 +62,4 @@ unusedFunction:../kactl/stress-tests/utilities/genTree.h:49
 containerOutOfBounds:../library/data_structures_[l,r)/uncommon/permutation_tree.hpp:85
 ctuOneDefinitionRuleViolation:../library/data_structures_[l,r)/bit.hpp:5
 ctuOneDefinitionRuleViolation:../library/data_structures_[l,r)/lazy_seg_tree.hpp:4
-shiftTooManyBits:../library/math/matrix_related/xor_basis_ordered.hpp:17
+shiftTooManyBits:../library/math/matrix_related/xor_basis_ordered.hpp:18