#859: In Changelog, put in bold one ticket that changes the API.

Changelog.md

@@ -12,8 +12,8 @@ Starting from v18.47, the ticket numbers in bold are those that might break comp
 facility to identify entry keys has been entirely rewritten and seems to work in any case (I did my best to write all the edge cases I could
 think of in the test suite).
 
-- Support #1470 - Feature #279:  Refactor PrintContainers facilities: there are now only two functions (one for tuple and another for other 
-containers). Policies aere provided to handle the different cases (including associative containers).
+- __Support #1470 - Feature #279__:  Refactor PrintContainers facilities: there are now only two functions (one for tuple and another for other 
+containers). Policies are provided to handle the different cases (including associative containers).
 - Support #1469: One of the policy mentioned in #1470 enables to print content of a container of std::variant (provided the types within the 
 variant are printable).
 - Support #1467: Following #1432, there is no need to keep track of the LuaOptionFile used to interpret input data file.