Fixes in README

README.md

@@ -96,4 +96,23 @@ There other options how I/O where you can define a file log for check errors if
 
 All's done!, you can init your service with **nssm start MonitService** and let's go.
 
+# Developing plugins.
+
+You can add simple python scripts how plugins for add new collections to your data.
+
+The python scripts need have the next structure:
+
+```python
+def stat(obj_stats):
+
+    obj_stats['test_data']={'pos': 0}
+
+    return obj_stats
+```
+
+You define a function with name *stat* and arguments *obj_stats*
+
+*obj_stats* is a python object. You can add new data or manipulate original collected data for your own proposites.
+
+