Update installer/mod-manager section (#71)

* Add links to r2modman

* Update disclaimer

* Add description to each installer

* Annotate links

* Fix formatting
Putting links in same paragraph on new line doesn't seem to work

* Add link to r2mm wiki

* Add screenshots for all installers

4 files changed, 33 insertions, 1 deletions

diff --git a/docs/images/r2modman-main-window.png b/docs/images/r2modman-main-window.png
new file mode 100644
index 0000000..575b819
--- /dev/null
+++ b/docs/images/r2modman-main-window.png
diff --git a/docs/images/viper-main-window.png b/docs/images/viper-main-window.png
new file mode 100644
index 0000000..9b04a9c
--- /dev/null
+++ b/docs/images/viper-main-window.png
diff --git a/docs/images/vtol-update-window.png b/docs/images/vtol-update-window.png
new file mode 100644
index 0000000..941d720
--- /dev/null
+++ b/docs/images/vtol-update-window.png
diff --git a/docs/installing-northstar/northstar-installers.md b/docs/installing-northstar/northstar-installers.md
index dadf25b..2877f9d 100644
--- a/docs/installing-northstar/northstar-installers.md
+++ b/docs/installing-northstar/northstar-installers.md
@@ -2,12 +2,44 @@
 
 Since the public release of Northstar, the wider community has created tools to automate mod installation, as well as adding additional features such as auto-updating the current Northstar install and mod management.
 
-Note that none of these tools are officially supported and as such any issues with them should be reported to the respective authors.
+Note that none of these tools directly part of the Northstar project and as such any issues with them should be reported to the respective authors instead.
+
+## **ebkr:** r2modman
+
+![r2modman](../images/r2modman-main-window.png)
+
+General mod-manager for multiple games including Titanfall|2+Northstar. Allows for separate profiles to keep your game install folder clean. Features mod-manager and built-in mod browser for Thunderstore.\
+Supports Windows and Linux.
+
+Download from (select _"Manual Download"_):
+
+{% embed url="https://northstar.thunderstore.io/package/ebkr/r2modman/" %}
+
+Source code:
+
+{% embed url="https://github.com/ebkr/r2modmanPlus" %}
+
+Wiki and documentation:
+
+{% embed url="https://github.com/ebkr/r2modmanPlus/wiki/" %}
 
 ## **0neGal:** Viper
 
+![viper](../images/viper-main-window.png)
+
+Simple and easy to use Northstar installer and auto-updater. Allows launching both Northstar and vanilla Titanfall 2. Features mod-manager and built-in mod browser for Thunderstore.\
+Supports Windows and Linux.
+
+Download and source code:
+
 {% embed url="https://github.com/0neGal/viper" %}
 
 ## **BigSpice:** VTOL
 
+![vtol](../images/vtol-update-window.png)
+
+Easy to use and extensive Northstar installer and mod-manager. Supports installing from Thunderstore as well as from outside sources like GitHub/GitLab repositories. Has support for installing custom weapon/pilot skins. Features manager for setting up dedicated servers.
+
+Download and source code:
+
 {% embed url="https://github.com/BigSpice/VTOL" %}