Update Readme

replace bitshares#548

README.md

@@ -57,7 +57,8 @@ the blockchain. After syncing, you can exit the node using Ctrl+C and setup the
 
     rpc-endpoint = 127.0.0.1:8090
 
-**NOTE:** Currently(2017-09-04) a full node need 40GB of RAM to operate and required memory is growing fast. To start a node with reduced RAM check the following: [Memory reduction for nodes](https://github.com/bitshares/bitshares-core/wiki/Memory-reduction-for-nodes).
+**NOTE:** By default the witness node will start in reduced memory ram mode by using some of the commands detailed in [Memory reduction for nodes](https://github.com/bitshares/bitshares-core/wiki/Memory-reduction-for-nodes).
+In order to run a full node with all the account history you need to remove `partial-operations` and `max-ops-per-account` from your config file. Please note that currently(2017-12-23) a full node need 54GB of RAM to operate and required memory is growing fast.
 
 After starting the witness node again, in a separate terminal you can run: