Fix capitalization

Author: pedrosousa

src/content/glossary/waf.yaml

@@ -57,7 +57,7 @@ entries:
 
   - term: rule characteristics
     general_definition: |-
-      The set of parameters of a rate limiting rule that define how Cloudflare tracks the rate for the rule.
+      the set of parameters of a rate limiting rule that define how Cloudflare tracks the rate for the rule.
 
   - term: SIEM
     general_definition: |-