Format changelog properly
## 2.4.3 / 2018-10-04
-[BUGFIX] Fix panic when using custom EC2 API for SD #4672
-[BUGFIX] Fix panic when Zookeeper SD cannot connect to servers #4669
-[BUGFIX] Make the skip_head an optional parameter for snapshot API #4674
+* [BUGFIX] Fix panic when using custom EC2 API for SD #4672
+* [BUGFIX] Fix panic when Zookeeper SD cannot connect to servers #4669
+* [BUGFIX] Make the skip_head an optional parameter for snapshot API #4674
## 2.4.2 / 2018-09-21
