Called out cert lines

Author: codepope

README.md

@@ -15,6 +15,6 @@ To run stunredis.sh:
 
 The lechain.pem file is a sample of the verification chain for Lets Encrypt. Do not use for production if you are concerned about correctness.
 
-You can be create your own version of lechain.pem by downloading and combining the contents of the [Let's Encrypt X3 Cross-signed PEM file](https://letsencrypt.org/certs/lets-encrypt-x3-cross-signed.pem.txt) and the [IdenTrust Root for X3](https://www.identrust.com/certificates/trustid/root-download-x3.html). (The latter link's content will need to be wrapped in the same -----BEGIN CERTIFICATE-----/-----END CERTIFICATE----- lines that the first links content is wrapped in). Consult lechain.pem for an example of how it should look.
+You can be create your own version of lechain.pem by downloading and combining the contents of the [Let's Encrypt X3 Cross-signed PEM file](https://letsencrypt.org/certs/lets-encrypt-x3-cross-signed.pem.txt) and the [IdenTrust Root for X3](https://www.identrust.com/certificates/trustid/root-download-x3.html). (The latter link's content will need to be wrapped in the same `-----BEGIN CERTIFICATE-----`/`-----END CERTIFICATE-----` lines that the first links content is wrapped in). Consult lechain.pem for an example of how it should look.
 
 For simplicity, it is located in the same directory as the stunredis.sh script.