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diff --git a/README.md b/README.md
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+++ b/README.md
@@ -3,3 +3,33 @@
 ## Downloading source data
 
 curl -G "https://opendata.fmi.fi/wfs" --data-urlencode "service=WFS" --data-urlencode "version=2.0.0" --data-urlencode "request=GetFeature" --data-urlencode "storedquery_id=fmi::observations::weather::timevaluepair" --data-urlencode "fmisid=100968" --data-urlencode "starttime=2025-12-28T00:00:00Z" --data-urlencode "endtime=2025-12-28T01:00:00Z" --data-urlencode "timestep=60" -o observation.xml
+
+### Instructions
+
+Build
+
+```bash
+go build -o bin/publisher ./cmd/publisher
+go build -o bin/subscriber ./cmd/subscriber
+```
+
+Run
+
+```bash
+go run ./cmd/publisher
+go run ./cmd/subscriber
+```
+
+Install
+
+```bash
+go install ./cmd/publisher
+go install ./cmd/subscriber
+```
+
+Then run from anywhere
+
+```bash
+publisher
+subscriber
+```