README: update instructions for FreeBSD

README.md

@@ -1,15 +1,18 @@
 ![alt text](https://opnsense.org/wp-content/themes/OPNsense/assets/img/opnsense.png "Logo Title Text 1")
 
 # OPNsense documentation
+
 Welcome to the OPNsense documentation & wiki.   
 The purpose of this project is to provide OPNsense users with quality documentation.
 
 ## Contribute
+
 You can contribute to the project in many ways, e.g. testing
 functionality, sending in bug reports or creating pull requests
 directly via GitHub.  Any help is always very welcome!
 
 ## License
+
 OPNsense documentation is available under the 2-Clause BSD license:
 
 http://opensource.org/licenses/BSD-2-Clause
@@ -28,9 +31,17 @@ license of these rights. Deciso B.V. does not represent or make any warranties
 that it owns or licenses any of the mentioned, nor does it grant them.
 
 #### Prepare build
-Install Sphinx, our default theme and contrib packages
+
+On FreeBSD the following packages are required:
+
 ```
-pip3 install -r requirements.txt --upgrade
+pkg install py37-pip jpeg-turbo gmake
+```
+
+Install Sphinx, our default theme and contrib packages:
+
+```
+pip install -r requirements.txt --upgrade
 ```
 
 ### Update API endpoints
@@ -43,37 +54,42 @@ executed using:
 ./collect_api_endpoints.py --repo plugins /path/to/plugins/repository
 ```
 
-
 #### Generate HTML documents
+
 ```
 make html
 ```
 
 (```make clean``` to flush)
 
-
 #### Changing theme
+
 * Install Sass (http://sass-lang.com/). On macOS, this is done via ```/Library/Ruby/Gems```
+
 ```
 gem install --no-user-install sass
 ```
+
 * Install npm (https://www.npmjs.com/get-npm)
 * Install Bower (https://bower.io/)
+
 ```
 npm install -g bower
 ```
 
-
 Install required stylesheets using bower
+
 ```
 bower install wyrm
 bower install robotoslab-googlefont
 bower install inconsolata-googlefont
 bower install font-awesome#4.7.0
 ```
-(for font-awesome, choose newest)
 
+(for font-awesome, choose newest)
 
 #### Build your theme:
+
 ```
 sass -I bower_components/wyrm/sass/ -I bower_components/bourbon/dist/ -I bower_components/neat/app/assets/stylesheets/ -I bower_components/font-awesome/scss/ themes/opnsense/sass/theme.sass  > source/_static/css/opnsense.css
+```