document fly memory increase (fix datomic oom)

Author: dustingetz

Readme.md

@@ -77,10 +77,11 @@ fly status
 fly platform vm-sizes
 fly scale show
 fly scale vm shared-cpu-8x # for 2gb ram
+fly scale memory 4096 -a electric-datomic-viewer
 fly regions list
 fly regions add ewr gru sjc cdg
 fly scale count 1 --region ewr
 fly scale count 1 --region cdg
 fly scale count 1 --region sjc
 fly scale count 1 --region gru
-```
+```