Update changelog for v1.5.5

CHANGELOG.md

@@ -1,25 +1,34 @@
-### 1.5.4
+# CHANGELOG
+
+## 1.5.5
+
+* Add support for endpoints that accept `application/x-www-form-urlencoded` instead of `application/json` (i.e. SLAS).
+
+## 1.5.4
+
 * Support boolean query parameters
 
-### 1.5.3
+## 1.5.3
+
 * Different case headers specified when invoking a method will now properly be merged, rather than only one being used.
 Headers specified when invoking a method will overwrite headers specified in the client config, regardless of case.
 
-### 1.5.2
+## 1.5.2
+
 * Security updates
 
-### 1.5.1
+## 1.5.1
+
 * Security updates
 
-### 1.5.0
+## 1.5.0
 
 * Removed raml-toolkit as a runtime dependency
 * Refactored cache manager to be more object orientated
   * Exposed more options within the cache manager
   * Fixed type definitions within the cache manager
 
-### 1.4.10
+## 1.4.10
 
 * Updated to TypeScript 3.9
 * Removed "beta" tag
-