Update README.md

Author: Valantin

README.md

@@ -433,73 +433,18 @@ Take a look at the [REFERENCE.md](https://github.com/voxpupuli/puppet-zabbix/blo
 
 ## Limitations
 
-This module supports Zabbix 4.0, 5.0, and 6.0. The upstream supported versions are documented [here](https://www.zabbix.com/life_cycle_and_release_policy)
+This module supports Zabbix 5.0, 6.0 and 7.0. The upstream supported versions are documented [here](https://www.zabbix.com/life_cycle_and_release_policy)
 Please have a look into the metadata.json for all supported operating systems.
 
 This module is supported on both the community and the Enterprise version of Puppet.
 
 Please be aware, that when manage_resources is enabled, it can increase an puppet run on the zabbix-server a lot when you have a lot of hosts.
 
 ## Contributors
+Take a look at the [CONTRIBUTING.md](https://github.com/voxpupuli/puppet-zabbix/blob/master/.github/CONTRIBUTING.md)
 
-**ericsysmin** will be helping and maintaining this puppet module. In Github terms he is an Collaborator. So don't be suprised if he acceps/rejects Pull Requests and comment in issues.
-
-The following have contributed to this puppet module:
-
- * Suff
- * gattebury
- * sq4ind
- * nburtsev
- * actionjack
- * karolisc
- * lucas42
- * f0
- * mmerfort
- * genebean
- * meganuke19
- * fredprod
- * ericsysmin
- * JvdW
- * rleemorlang
- * genebean
- * exptom
- * sbaryakov
- * roidelapluie
- * andresvia
- * ju5t
- * elricsfate
- * IceBear2k
- * altvnk
- * rnelson0
- * hkumarmk
- * Wprosdocimo
- * 1n
- * szemlyanoy
- * Wprosdocimo
- * sgnl05
- * hmn
- * BcTpe4HbIu
- * mschuett
- * claflico
- * bastelfreak
- * Oyabi
- * akostetskiy
- * DjxDeaf
- * tcatut
- * inspired-geek
- * ekohl
- * z3rogate
- * mkrakowitzer
- * eander210
- * hkumarmk
- * ITler
- * slashr00t
- * channone-arif-nbcuni
- * BcTpe4HbIu
- * vide
-
-Many thanks for this!
-(If I have forgotten you, please let me know and put you in the list of fame. :-))
+Contributors List:
+* https://github.com/voxpupuli/puppet-zabbix/graphs/contributors
 
 ## Note
 ### Standard usage