Updated Synology RT1900ac install guide (markdown)

Synology-RT1900ac-install-guide.md

@@ -1,22 +1,31 @@
 I got tired of manually maintaining Let's Encrypt on my laptop to update my Router.
 so I now pushed that to the router itself.
 
+
 here's the HowTo (xpost https://forum.synology.com/enu/viewtopic.php?f=265&t=123003 ).
-I've used https://github.com/Neilpang/acme.sh , a 3rd party client for Let's Encrypt, based on Perl. no extra dependencies.
+
+
+I've used https://github.com/Neilpang/acme.sh , a 3rd party client for Let's Encrypt, based on shell scripting. no extra dependencies.
+
+
 I've also used it with DNS01 protocol, which means, I don't have any ports open on the router to do the validation, instead it use Cloudflare API, where I host my domain.
 
 Since the Router shell is very limited, there are several constraints. the most important of all, there is no crontab.
 
 trying the default install
+```
 $ wget -O -  https://get.acme.sh | sh
+```
 , will fail because of crontab.
 
 so we have to do it manually
+```
 $ wget https://github.com/Neilpang/acme.sh/archive/master.tar.gz
 $ tar xvf master.tar.gz
 $ cd acme.sh-master/
 $ ./acme.sh --install --nocron --home /volume1/@appstore/acme.sh
 log out and login to ssh again
+```
 
 so install is done :)
 
@@ -28,14 +37,18 @@ export CF_Key="sdfsdfsdfljlbjkljlkjsdfoiwje"
 export CF_Email="xxxx@sss.com"
 
 now to create your cert
+```
 $ ./acme.sh  --issue --post-hook "/usr/syno/sbin/synoservicecfg --restart httpd-sys" --dns dns_cf --certpath /usr/syno/etc/ssl/ssl.crt/server.crt --keypath /usr/syno/etc/ssl/ssl.key/server.key --fullchainpath /usr/syno/etc/ssl/ssl.intercrt/server-ca.crt --config-home /volume1/@appstore/acme.sh/ --dnssleep 15 -d YOURDOMAIN.TLD 
+```
 
 simple right?
 
 since there is no crontab, we need to manually add it to cron.
+```
 $ vi /etc/crontab 
 and add something like
 3       2       *       *       2       root    /root/.acme.sh/acme.sh --cron
 :wq
+```
 
 HTH