Typo

Author: davidhassell

Changelog.rst

@@ -25,7 +25,7 @@ version NEXT
   131072 (Mean over an ensemble of parallel runs) to be ignored
   (https://github.com/NCAS-CMS/cf-python/issues/737)
 * Fix bug in `cf.aggregate` that sometimes put a null transpose
-  operation into the Dask grpah when one was not needed
+  operation into the Dask graph when one was not needed
   (https://github.com/NCAS-CMS/cf-python/issues/754)
 
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