Fix changelog format

Author: edygar

CHANGELOG.md

@@ -10,13 +10,13 @@ Some guidelines in reading this document:
 * Being that these are the early days of the repository, we have some code changes that were added directly and without much detail, for these we have a link to the commit instead of the PR.
 * Annotations starting with **[BC]** indicates breaking change.
 
-## [1.3.3]
+## 1.3.3
 * WPAPI adapter: body of modifying requests wasn't being sent due a typo.
 
-## [1.3.2]
+## 1.3.2
 * Fix [#26](https://github.com/log-oscon/redux-wpapi/issues/26): Incoming partial resources shouldn't change the complete resource in cache to partial, just update it. ([#27](https://github.com/log-oscon/redux-wpapi/pull/27))
 
-## [1.3.1]
+## 1.3.1
 * Fix: Ensures pagination shape and presence in response. ([#25](https://github.com/log-oscon/redux-wpapi/pull/25))
 * Fix TTL behavior: It now can be overriden by the consumer when dispatching `callAPI` ([#24](https://github.com/log-oscon/redux-wpapi/pull/24))