chore(networkmonitor): update README

tools/README.md

@@ -52,6 +52,7 @@ Monitoring tool to run in an existing `waku` network with the following features
 * Tracks advertised capabilities of each node as per stored in the ENR `waku` field
 * Attempts to connect to all nodes, tracking which protocols each node supports
 * Presents grafana-ready metrics showing the state of the network in terms of locations, ips, number discovered peers, number of peers we could connect to, user-agent that each peer contains, etc.
+* Metrics are exposed through prometheus metrics but also with a custom rest api, presenting detailed information about each peer.
 
 ### Usage
 
@@ -70,6 +71,8 @@ The following options are available:
      --metrics-server          Enable the metrics server: true|false [=true].
      --metrics-server-address  Listening address of the metrics server. [=ValidIpAddress.init("127.0.0.1")].
      --metrics-server-port     Listening HTTP port of the metrics server. [=8008].
+     --metrics-rest-address    Listening address of the metrics rest server. [=127.0.0.1].
+     --metrics-rest-port       Listening HTTP port of the metrics rest server. [=8009].
 ```
 
 ### Example
@@ -83,14 +86,16 @@ Connect to the network through a given bootstrap node, with default parameters.
 
 ### metrics
 
-The following metrics are available:
+The following metrics are available. See `http://localhost:8008/metrics`
 
 * peer_type_as_per_enr: Number of peers supporting each capability according the the ENR (Relay, Store, Lightpush, Filter)
 * peer_type_as_per_protocol: Number of peers supporting each protocol, after a successful connection)
-* discovered_peers_list: List of discovered peers with extra information on each of them
-* connected_peers_list: List of peers that we connected to with extra information on each one
 * peer_user_agents: List of useragents found in the network and their count
 
 Other relevant metrics reused from `nim-eth`:
 * routing_table_nodes: Inherited from nim-eth, number of nodes in the routing table
-* discovery_message_requests_outgoing_total: Inherited from nim-eth, number of outging discovery requests, useful to know if the node is actiely looking for new peers
+* discovery_message_requests_outgoing_total: Inherited from nim-eth, number of outging discovery requests, useful to know if the node is actiely looking for new peers
+
+The following metrics are exposed via a custom rest api. See `http://localhost:8009/allpeersinfo`
+
+* json list of all peers with extra information such as ip, locatio, supported protocols and last connection time.