[Docs] Fix typo in watcher conditions documentation
@@ -13,7 +13,7 @@ in the watch payload to determine whether or not to execute the watch actions.
* <<condition-array-compare, `array_compare`>>: compare an array of values in the
watch payload to a given value to determine whether or not to execute the watch
actions.
-* <<condition-script, `script`>>: use a script to determine wehther or not to
+* <<condition-script, `script`>>: use a script to determine whether or not to
execute the watch actions.
NOTE: If you omit the condition definition from a watch, the condition defaults
