Update README.md

README.md

-# SecureXL [(Download the MKP package)](/../../../-/raw/master/checkpoint_securexl.mkp "Download MKP package")
-
-**Note: this package is for CheckMK version 2.x. For other versions see the corresponding branch.**
+# SecureXL
 
 Monitors status of Check Point SecureXL
 
 **Note**: check was renamed from *checkpoint_sxl_status* to *checkpoint_securexl*
 
-Check Info:
+---
+### Check Info
 
 * *service*: this check will create one service per Check Point gateway
 * *state*: **warning** if fwSXLStatus is not '1' (SXL enabled)
@@ -16,7 +15,26 @@ Check Info:
     * connections_added (/s)
     * connections_deleted (/s)
 
-Sample output
+---
+### Download
+
+* [checkpoint_securexl.mkp (latest version)](https://thl-cmk.hopto.org/gitlab/checkmk/check-point/gateway/checkpoint_securexl/-/raw/master/checkpoint_securexl.mkp "Download latest version")
+
+---                   
+### Installation
+
+You can install the package by uploading it to your CheckMK site and as site user run `mkp install checkpoint_securexl.mkp`.
+
+
+In the Enterprise/Free edition of CheckMK you can use the GUI to install the package (_Setup_ -> _Extension Packages_ -> _Upload package_)
+
+---
+### Want to contribute?
+
+Nice ;-) Have a look at the [contribution guidelines](CONTRIBUTING.md "Contributing")
+
+---
+### Sample output
 
 ![sample output](/doc/sample.png?raw=true "sample output")