CHANGELOG.md in google-cloud-bigquery-1.8.1 vs CHANGELOG.md in google-cloud-bigquery-1.8.2

@@ -1,6 +1,12 @@
 # Release History
 
+### 1.8.2 / 2018-09-20
+
+* Update documentation.
+  * Change documentation URL to googleapis GitHub org.
+* Fix circular require warning.
+
 ### 1.8.1 / 2018-09-12
 
 * Add missing documentation files to package.
 
 ### 1.8.0 / 2018-09-10