Update docs on installation

Author: ffdixon

_posts/2020-07-10-dev23.md

@@ -215,16 +215,16 @@ We are now providing presenters with the option to randomly pick a student in th
 
 # Installation
 
-BigBlueButton 2.3-dev requires the same [minimum server requirements](https://docs.bigbluebutton.org/2.2/install.html#minimum-server-requirements) as 2.2, with the following notable differences
+To install/upgrade a Ubuntu 18.04 server to the latest version of BigBlueButton 2.3-dev, use the [bbb-install.sh](https://github.com/bigbluebutton/bbb-install). 
+
+For server requirements, BigBlueButton 2.3-dev needs the same [minimum server requirements](https://docs.bigbluebutton.org/2.2/install.html#minimum-server-requirements) as 2.2, with the following differences
 
   * Ubuntu 18.04 64-bit
   * docker (Libreoffice now runs within a docker container)
 
-The requirement for docker may preclude running 2.3-dev within some virtualized environments, such as LXC and containerd; however, it ensures libreoffice runs within a restrited sandbox for document conversion.  
-
-Use the [bbb-install.sh](https://github.com/bigbluebutton/bbb-install) script to install BigBlueButton 2.3-dev on an Ubuntu 18.04 server with a single command, such as
+The requirement for docker may preclude running 2.3-dev within some virtualized environments, such as LXC and containerd; however, it ensures libreoffice runs within a restrited sandbox for document conversion.  We are exploring if we can run libreoffice within systemd (such as systemd-nspawn).
 
-For example, if the external hostname of your server was `bbb.example.com` and your e-mail address was `[email protected]`, you can install BigBlueButton 2.3-dev with the command
+The following command will install BigBlueButton 2.3-dev using `bbb.example.com` as the hostname and `[email protected]` as the email for Let's Encrypt (you would substitute these values for your own hostname and email address).
 
 ```bash
 wget -qO- https://ubuntu.bigbluebutton.org/bbb-install.sh | bash -s -- -v bionic-230-dev -s bbb.example.com -e [email protected]  -a -w
@@ -250,6 +250,9 @@ ii  bbb-web                   1:2.3.0-25      amd64    BigBlueButton API
 ii  bbb-webrtc-sfu            1:2.3.0-9       amd64    BigBlueButton WebRTC SFU
 ```
 
+This installs BigBlueButton 2.3-dev with Let's encrypt certificate and the API demos.  You can then try out the server by opening https://<hostname>/ in a browser (where <hostname> is the hostname you specified in the `bbb-install.sh` command).  For more information, see the [bbb-install.sh](https://github.com/bigbluebutton/bbb-install) documentation.
+
+
 # Customizations
 
 ## Increase number of processes for nodejs