techno.md

@@ -51,6 +51,9 @@ See also:
   * [Apache httpd Server]
   * ~~[NGINX]~~
 
+### SSL Certificates
+ * [Certbot]
+
 ### Back end
   * Python framework ([Django]) + WSGI server ([Gunicorn])
   * ~~Server-side JavaScript framework ([NodeJS] + [MongoDB])~~
@@ -137,6 +140,7 @@ See also:
 [jupyter]:https://jupyter.org/
 [Apache httpd Server]:https://httpd.apache.org/
 [NGINX]:https://www.nginx.com/
+[certbot]:https://certbot.eff.org/
 [Jenkins]:https://jenkins.io/
 [Travis]:https://travis-ci.org/
 [Buildbot]:https://buildbot.net/