updating Readme.

README.md

@@ -380,10 +380,14 @@ To use your own certificate:
 A dark-themed HTML page that auto-refreshes every 5 seconds. Sections:
 
 - **Stat cards** — total connections, connections in the last 60 seconds, uptime, ports mapped, and last connection time.
-- **Top source IPs** — the 10 most active scanner addresses since startup.
+- **Top source IPs** — the 10 most active scanner addresses since startup, each annotated with a two-letter country code fetched from the geo lookup service.
 - **Top targeted ports** — the 10 most-probed ports since startup.
 - **Banner lookup** — enter any port number (0–65535) and see the hex and text preview of the banner that port will send. The result persists across auto-refreshes when using the `?port=N` query parameter.
-- **Recent connections** — the 50 most-recent connections, newest first, with timestamp, source, destination port, banner hex excerpt, and banner length.
+- **Recent connections** — the 50 most-recent connections, newest first, with timestamp, source IP (with country code), destination port, and banner length.
+
+#### IP geolocation
+
+Country codes are resolved asynchronously on each dashboard render using `https://www.daprogs.com/ip/?raw=1&ip=<IP>`. Results are cached in memory for the lifetime of the process, so each IP is only looked up once. Private or unroutable addresses (e.g. `127.0.0.1`, `192.168.x.x`) that return no result are displayed without a country code — no crash, no placeholder.
 
 ### Banner lookup shortcut
 
@@ -422,7 +426,7 @@ Current statistics snapshot.
 
 #### `GET /api/connections?limit=N`
 
-The N most-recent connection events, newest first. `limit` defaults to 50, maximum 500.
+The N most-recent connection events, newest first. `limit` defaults to 100, maximum 500.
 
 ```json
 [
@@ -431,7 +435,6 @@ The N most-recent connection events, newest first. `limit` defaults to 50, maxim
     "src_ip":    "198.51.100.42",
     "src_port":  54312,
     "dst_port":  443,
-    "banner_hex": "485454502f312e31203230300d0a",
     "banner_len": 14
   }
 ]
@@ -608,7 +611,7 @@ Only traffic arriving on `eth1` is redirected. Traffic on other interfaces (e.g.
 # Poll stats every second
 watch -n1 'curl -su admin:changeme http://127.0.0.1:8080/api/stats | python3 -m json.tool'
 
-# Tail recent connections
+# Tail the 10 most recent connections
 watch -n2 'curl -su admin:changeme "http://127.0.0.1:8080/api/connections?limit=10" | python3 -m json.tool'
 ```