Update Docs (home-assistant#3143)

rrubin0 · fabaff · commit c8889d7872f5 · 2017-08-06T01:04:54.000+02:00
Fixed grammar for better readability
diff --git a/source/_addons/lets_encrypt.markdown b/source/_addons/lets_encrypt.markdown
@@ -10,10 +10,10 @@ footer: true
 featured: true
 ---
 
-Setup and manage a [Let's Encrypt](https://letsencrypt.org/) certificate. This will create a certificate on the first run and renew it if the certificate is expiring in the next 30 days.
+Setup and manage a [Let's Encrypt](https://letsencrypt.org/) certificate. This will create a certificate on the first run and will auto-renew if the certificate is within 30 days of expiration.
 
 <p class='note warning'>
-This add-on need port 80/443 to verify the certificate request, please stop all add-ons they use also this ports, otherwise you can not start this add-on.
+This add-on need port 80/443 to verify the certificate request, please stop all add-ons that also use these ports, or you may not be able to start this add-on.
 </p>
 
 ```json
