contributing: prerequisites installation

ALERTua · ALERTua · commit 2b672fc50bb3 · 2025-09-24T17:47:42.000+03:00
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -19,6 +19,9 @@ Activate Python virtual environments
 - Linux: `source .venv/bin/activate`
 - Windows `.venv\Scripts\activate`
 
+Install prerequisites
+- `poetry install`
+
 #### Make your modifications
 
 #### Re-create Poetry Lock File, if you modified the requirements
