Small readme updates

Author: allen-chu-ge

README.md

@@ -26,7 +26,7 @@ For more information on running orchestrations in Predix Analytics, see [Using t
 
 ## Custom Data Connector
 
-**[Sample Custom Data Connectors](custom-data-connector)
+**[Sample Custom Data Connectors](custom-data-connector)**
 
 These are sample custom data connector implementations to connect to various data sources
 

custom-data-connector/README.md

@@ -2,6 +2,6 @@
 
 These are sample custom data connector implementations to connect Predix Analytics to various data sources:
 
-- **[postgres db implementation](postgresdb-ref-impl-data-connector)
+- **[postgres db implementation](postgresdb-ref-impl-data-connector)**
 
 For more information on developing custom data connector implementations for use with Predix Analytics, see [About Analytics Using an External Data Source](https://www.predix.io/docs/?r=336965#JgA3859v) on Predix IO.