add firmware section

source/manual/firmware.rst

@@ -0,0 +1,73 @@
+==========================
+Firmware
+==========================
+
+In the firmware section you can keep your OPNsense up to date and have the ability to install additional software.
+
+
+--------------------------------
+Updates
+--------------------------------
+
+
+How to install updates and information about our versioning can be found in the Installation and setup section, which
+can be found in the  :doc:`/manual/updates` document
+
+
+--------------------------------
+Plugins
+--------------------------------
+
+Plugins are additional software packages that are available for OPNsense, usually they come with there own
+frontend components to setup the software underneath.
+Here you can find community support plugins, such as  **bind**, **c-icap**, **freeradius** and others. Usually there is also
+a **-devel** version available, which contains features still under development (master branch on GitHub verses release).
+
+
+.. Note::
+
+    .. raw:: html
+
+          You can use the <i class="fa fa-plus fa-fw"></i> symbol to install the package.
+
+
+.. Tip::
+
+  .. raw:: html
+
+        Use the info <i class="fa fa-info-circle fa-fw"></i> button to display information about the package and to find the active maintainer of this piece of software.
+
+
+--------------------------------
+Packages
+--------------------------------
+
+The packages tab contains the installed ports packages, here you can check licenses, force reinstalls or lock
+versions.
+
+--------------------------------
+Changelog
+--------------------------------
+
+If you would like to read about the changes in (past) releases, you can do so in the **Changelog** tab.
+
+
+--------------------------------
+Settings
+--------------------------------
+
+The settings menu contains all available mirrors and options which you can choose for your installation.
+Usually the default options are good enough here, but if you want to choose a mirror more close to home you can do so here.
+
+OPNsense supports two flavours for its TLS crypto stack , OpenSSL and LibreSSL. Our standard is `OpenSSL <https://www.openssl.org/>`__, but some more
+security minded people favor OpenBSD's `LibreSSL <https://www.libressl.org/>`__
+
+.. Note::
+
+    Since OpenSSL is more widely used, some software packages are not compatible with LibreSSL.
+
+
+.. Tip::
+
+    The settings menu also provides the option to test development versions, which can be practical when testing features that
+    are planned for release. Just change the release type to **Development**.

source/system.rst

@@ -19,6 +19,7 @@ activities.
 
    manual/users
    manual/backups
+   manual/firmware
    manual/gateways
    manual/how-tos/multiwan
    manual/multiwan.rst