Update CHANGELOG-1.x.md

Author: castastrophe

CHANGELOG-1.x.md

@@ -1,8 +1,8 @@
-# 1.3.4 (TBD)
+# 1.3.4 (2021-03-29)
 
 - [5304f20](https://github.com/patternfly/patternfly-elements/commit/5304f20638db60a7c48028a39b49dfbc42f7acc7) fix: pfe-tabs padding
-- [](https://github.com/patternfly/patternfly-elements/commit/) fix: reduce padding on the pfe jump link
-- [](https://github.com/patternfly/patternfly-elements/commit/) fix: Content set bug erroring on dynamic content
+- [e292289](https://github.com/patternfly/patternfly-elements/commit/e2922898ed4dbb96924a1dc3c8f8cd3a3e4d76fa) fix: reduce padding on the pfe jump link
+- [404d8e2](https://github.com/patternfly/patternfly-elements/commit/404d8e264a62052afafe815cbc35bdf81f12a897) fix: Content set bug erroring on dynamic content
 
 # 1.3.3 (2021-03-18)