Update recording_rules.md

adding Josh's suggestion

Signed-off-by: Jennifer Villa <jvilla2013@gmail.com>

docs/configuration/recording_rules.md

@@ -150,4 +150,4 @@ written.
 
 # Failed rule evaluations due to slow evaluation
 
-If a rule group hasn't finished evaluating before its next evaluation is supposed to start (as defined by the `evaluation_interval`), the next evaluation will be skipped. Subsequent evaluations of the rule group will continue to be skipped until the initial evaluation either completes or times out. When this happens, there will be a gap in the recording rule metric. The `rule_group_iterations_missed_total` metric will be incremented for each missed iteration. 
+If a rule group hasn't finished evaluating before its next evaluation is supposed to start (as defined by the `evaluation_interval`), the next evaluation will be skipped. Subsequent evaluations of the rule group will continue to be skipped until the initial evaluation either completes or times out. When this happens, there will be a gap in the recording rule metric. The `rule_group_iterations_missed_total` metric will be incremented for each missed iteration of the rule group.