removed note

Author: Lisa Primeaux-Redmond

docs/README_API_INSTALL_POSTGRES_LINUX.md

@@ -4,7 +4,6 @@
 
 ## Installing PostgreSQL on Linux
 
-(https://www.postgresql.org/download/linux/ubuntu/)
 	# Create the file repository configuration:
 	$ sudo sh -c 'echo "deb https://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'