minor fixes

dnsapi/README.md

@@ -523,7 +523,7 @@ account file will always store the lastly used domain name.
 For issues, please report to https://github.com/raidenii/acme.sh/issues.
 
 
-## 27. Use pdd.yandex.ru API
+## 28. Use pdd.yandex.ru API
 
 ```
 export PDD_Token="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
@@ -537,7 +537,7 @@ acme.sh --issue --dns dns_yandex -d mydomain.example.org
 For issues, please report to https://github.com/non7top/acme.sh/issues.
 
 
-## 28. Use Name.com API
+## 29. Use Name.com API
 
 You'll need to fill out the form at https://www.name.com/reseller/apply to apply
 for API username and token.