Fix typo in section name

Author: timj

python/lsst/daf/butler/core/quantum.py

@@ -553,8 +553,8 @@ def addRecord(self, record: DimensionRecord) -> int:
         This function returns the key associated with the record (either the
         newly allocated key, or the existing one)
 
-        Paramters
-        ---------
+        Parameters
+        ----------
         record : `DimensionRecord`
             The record to add to the accumulator