docs(readme): link the stats overlay example to irl-stats.lua instead of inlining it

The README carried a full copy of the script, which had already
drifted from the file (the copy still polled every frame). Point at
the file so there is one script to keep current.

Author: datagutt

README.md

@@ -103,63 +103,7 @@ Earlier versions exposed Min/Max Buffer, PTS gap thresholds, Network Buffer and
 
 The plugin exposes live stats that a Lua or Python script can read, so you can put a status overlay on your own stream or on a monitor.
 
-Create a Text (GDI+) source called `IRL Stats`, then add this as a Lua script in OBS:
-
-```lua
-obs = obslua
-
-function script_description()
-    return "Updates a text source with IRL Source stats"
-end
-
-function script_update(settings)
-end
-
-function script_tick(seconds)
-    local source = obs.obs_get_source_by_name("IRL Source (irlserver.com)")
-    if not source then return end
-
-    local ph = obs.obs_source_get_proc_handler(source)
-    local cd = obs.calldata_create()
-    obs.proc_handler_call(ph, "get_stats", cd)
-
-    local buf_ms = obs.calldata_int(cd, "buffer_fill_ms")
-    local speed = obs.calldata_float(cd, "current_speed")
-    local ctrl = obs.calldata_bool(cd, "adaptive_latency_control")
-    local reconnecting = obs.calldata_bool(cd, "reconnecting")
-    local video = obs.calldata_int(cd, "total_video_frames")
-    local audio = obs.calldata_int(cd, "total_audio_frames")
-    local repairs = obs.calldata_int(cd, "pts_repairs")
-    local silence = obs.calldata_int(cd, "silence_insertions")
-    local underruns = obs.calldata_int(cd, "audio_underruns")
-    local resync_skips = obs.calldata_int(cd, "audio_resync_skipped_chunks")
-    local hidden_trims = obs.calldata_int(cd, "audio_hidden_trimmed_chunks")
-    local quality_events = obs.calldata_int(cd, "audio_quality_events")
-    local audio_flushes = obs.calldata_int(cd, "audio_decoder_flushes")
-    local video_flushes = obs.calldata_int(cd, "video_decoder_flushes")
-    local delay = obs.calldata_int(cd, "stream_delay_ms")
-
-    obs.calldata_destroy(cd)
-    obs.obs_source_release(source)
-
-    local status = reconnecting and "RECONNECTING" or "LIVE"
-    local text = string.format(
-        "Status: %s\nDelay: %dms\nBuffer: %dms\nControl: %s\nCorrection: %.3fx\nFrames: %d/%d (v/a)\nPTS Repairs: %d\nAudio Quality: %d events\nSilence/Underruns: %d/%d\nHidden Trims: %d\nResync Skips: %d\nDecoder Flushes: %d/%d (a/v)",
-        status, delay, buf_ms, ctrl and "on" or "off", speed, video, audio,
-        repairs, quality_events, silence, underruns, hidden_trims,
-        resync_skips, audio_flushes, video_flushes
-    )
-
-    local text_source = obs.obs_get_source_by_name("IRL Stats")
-    if text_source then
-        local settings = obs.obs_data_create()
-        obs.obs_data_set_string(settings, "text", text)
-        obs.obs_source_update(text_source, settings)
-        obs.obs_data_release(settings)
-        obs.obs_source_release(text_source)
-    end
-end
-```
+Create a Text (GDI+) source called `IRL Stats`, then add [`irl-stats.lua`](irl-stats.lua) as a Lua script in OBS (Tools → Scripts). It polls the source's `get_stats` proc handler once a second and writes the formatted stats into the text source. Edit the two source names in `update_stats` if yours differ.
 
 The full list of readable fields is in [Stats reference](#stats-reference).