Update README.md and api.py for v1.4.2

Author: Phil Budne

README.md

@@ -69,6 +69,7 @@ Deployments are now configured to be automatically built and released via GitHub
 5. Once it is done, the labeled image will be ready at https://hub.docker.com/r/mcsystems/news-search-api
 
 ## Version History
+* __v1.4.2__ - Fix topdomains aggregation
 * __v1.4.1__ - Bugfix correcting missed date conversion in client.py
 * __v1.4.0__ - New endpoints for sub-aggregations, including a small refactor of how aggregation queries are constructed, configurable timeout for elasticsearch
 * __v1.3.9__ - Overview query includes 'keyword' field for domain aggregator

api.py

@@ -68,7 +68,7 @@ def termaggrs_list(self) -> List[str]:
 
 
 class ApiVersion(str, Enum):
-    v1 = "1.4.1"
+    v1 = "1.4.2"
 
 
 ES = EsClientWrapper(config.eshosts_list)