Add features and limitations to README

README.md

@@ -1,5 +1,18 @@
 # meshtastic-node-red
 Node-RED Configuration for Meshtastic Packets
 
+## Features
+- Ingestion from MQTT
+- Protobufs decoding
+- Message deduplication by ID
+- Translating integer To/From node ids to hex
+- Annotating packets with known NodeInfo
+- Split for all current port numbers
+- Writing Packet, Device, Environment and Position measurements to InfluxDB
+- Debug nodes for all outputs
+
 ## Flow Preview
 ![meshtastic-flow](./meshtastic-flow.png)
+
+## Known Limitations
+- NeighbourInfo payloads are not correctly decoded