Merge pull request #8 from php-fig/patch-1

Added changelog

Author: sagikazarmark

CHANGELOG.md

@@ -2,3 +2,18 @@
 
 All notable changes to this project will be documented in this file, in reverse chronological order by release.
 
+## 1.0.0
+
+First stable release. No changes since 0.3.0.
+
+## 0.3.0
+
+Added Interface suffix on exceptions
+ 
+## 0.2.0 
+
+All exceptions are in `Psr\Http\Client` namespace
+
+## 0.1.0
+
+First release