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README.md

@@ -57,10 +57,10 @@ tree = BK::Tree.new(custom_algorithm)
 
 Note that:
 
-# the result of `call` *must* satisfy the _triangle inequality_,
-  i.e. _d(x,z) ≤ d(x,y) + d(y,z)_; and
-# whilst a `lambda` can be used as the distancer, for exporting and importing
-  (described below) to work, a named class must be used.
+1. the result of `call` *must* satisfy the _triangle inequality_,
+   i.e. _d(x,z) ≤ d(x,y) + d(y,z)_; and
+2. whilst a `lambda` can be used as the distancer, for exporting and importing
+   (described below) to work, a named class must be used.
 
 The precomputed tree can be exported to and reimported later from an IO-like object: