Fixed spelling on graphite docs page

docs/sources/datasources/graphite.md

@@ -7,7 +7,7 @@ page_keywords: grafana, graphite, metrics, query, documentation
 # Graphite
 
 Grafana has an advanced graphite query editor that lets you quickly navigate the metric space, add functions.
-Change function paramaters and much more. The editor cannot handle all types of queries yet.
+Change function parameters and much more. The editor cannot handle all types of queries yet.
 To switch to a regular text box click the pen icon to the right.
 
 ## Adding the data source to Grafana