Update README.md

README.md

-# if64name [Download the MKP package](/../../../-/raw/2.0.x/if64name.mkp "Download MKP package")
+[PACKAGE]: ../../raw/2.0.x/if64name.mkp "Download latest version if64name.mkp"
+# if64name
 
 This extension for the _if64_ check, It will replace _ifDescr_ with _ifName_ if available.\
 Also the long interface name will be replaced by a short version (ie. **HundredGigabitEthernet0/0/0** replaced by **Hu0/0/0**).\
 To use this extension you need to have a interface discovery rule that uses interface description for the service item.\
 To use the unchanged _if64_ version, just disable the _if64name_ snmp section. The original _if64_ check stayes completely unchanged.
 
+---
+### Download
+
+* [Download latest mkp file][PACKAGE]
+
+**Note**: before you update to a newer version, alway check the [CHANGELOG](CHANGELOG). There migth be incompatible changes.
+
+---                   
+### Installation
+
+You can install the package by uploading it to your CheckMK site and as site user run 
+```
+mkp install PACKAGENAME-VERSION.mkp
+```
+or beginning with CMK2.2.x
+```
+mkp add PACKAGENAME-VERSION.mkp
+mkp enable PACKAGENAME VERSION
+```
+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