Add some helpful comments

pg_duckdb-motherduck/benchmark.sh

@@ -11,9 +11,9 @@ set -ex
 # sudo apt install posgresql-client-common
 # sudo apt install postgresql-client-16
 
-
-CONNECTION=postgres://postgres:[email protected]:5432/postgres
-# CONNECTION=postgres://postgres:[email protected]:5432/postgres
+# Note: To get equivalent performance you should be runnign from
+# AWS US-EAST-1 region or as close to there as possible. Otherwise
+# you'll see additional latency.
 
 # Sign up for MotherDuck. 
 # Go to the web ui and obtain a token

pg_duckdb-motherduck/load.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+# Your docker may be set up to use localhost instead, if so
+# edit the ip address below.
 CONNECTION=postgres://postgres:[email protected]:5432/postgres
 PSQL=psql
 

pg_duckdb-motherduck/run.sh

@@ -1,6 +1,8 @@
 #!/bin/bash
 
 TRIES=3
+# Your docker may be set up to use localhost, if so edit ip address
+# below.
 CONNECTION=postgres://postgres:[email protected]:5432/postgres
 
 DATABASE='ddb$pgclick'