Example config on in documentation (#1069)

docs/applications/configuration.md

@@ -48,3 +48,106 @@ Database connections are also configured by using HOCON. This is done in
 [`db.conf`](../../db-commons/src/main/resources/db.conf). The options
 exposed here are **not** intended to
 be used by users of Bitcoin-S, and are internal only.
+
+## Example Configuration File
+```$xslt
+bitcoin-s {
+    datadir = ${HOME}/.bitcoin-s
+    network = regtest # regtest, testnet3, mainnet
+
+    logging {
+        level = WARN # trace, debug, info, warn, error, off
+
+        # You can also tune specific module loggers.
+        # They each take the same levels as above.
+        # If they are commented out (as they are
+        # by default), `logging.level` gets used
+        # instead. 
+        # The available loggers are: 
+
+        # incoming and outgoing P2P messages
+        # p2p = info
+
+        # verification of block headers, merkle trees
+        # chain-verification = info
+
+        # generation of addresses, signing of TXs
+        # key-handling = info
+
+        # wallet operations not related to key management
+        # wallet = info
+
+        # HTTP RPC server
+        # http = info
+
+        # Database interactions
+        # database = info
+
+        # whether or not to write to the log file
+        disable-file = false
+
+        # whether or not to log to stdout 
+        disable-console = false
+    }
+
+    node {
+        mode = neutrino # neutrino, spv
+
+        peers = [] # a list of peer addresses in form "hostname:portnumber"
+        # (e.g. "neutrino.testnet3.suredbits.com:18333")
+        # Port number is optional, the default value is 8333 for mainnet,
+        # 18333 for testnet and 18444 for regtest.
+    }
+
+    chain {
+        neutrino {
+            filter-header-batch-size = 2000
+            filter-batch-size = 100
+        }
+    }
+
+    # settings for wallet module
+    wallet {
+        defaultAccountType = legacy # legacy, segwit, nested-segwit
+
+        bloomFalsePositiveRate = 0.0001 # percentage
+
+        addressGapLimit = 20
+
+        discoveryBatchSize = 100
+    }
+}
+
+
+akka {
+    loglevel = "OFF"
+    stdout-loglevel = "OFF"
+    http {
+        client {
+            # The time after which an idle connection will be automatically closed.
+            # Set to `infinite` to completely disable idle connection timeouts.
+
+            # some requests potentially take a long time, like generate and prune
+            idle-timeout = 5 minutes
+        }
+    }
+
+
+    actor {
+        debug {
+            # enable DEBUG logging of all AutoReceiveMessages (Kill, PoisonPill etc.)
+            autoreceive= off
+            # enable function of LoggingReceive, which is to log any received message at
+            # DEBUG level
+            receive = on
+            # enable DEBUG logging of unhandled messages
+            unhandled = off
+
+            # enable DEBUG logging of actor lifecycle changes
+            lifecycle = off
+
+            event-stream=off
+        }
+    }
+}
+```