Update docs

docs/20_Checks/_index.md

@@ -12,7 +12,7 @@ There is one include script used by all checks:
 * [check_ceph_diskfree](check_ceph_diskfree.md)
 * [check_ceph_io](check_ceph_io.md)
 * [check_ceph_osd](check_ceph_osd.md)
-* check_ceph_status
+* [check_ceph_status](check_ceph_status.md)
 * check_clientbackup
 * check_couchdb-lb
 * [check_cpu](check_cpu.md)
@@ -23,22 +23,28 @@ There is one include script used by all checks:
 * check_haproxy_health
 * check_haproxy_status
 * check_memory
+* check_mysqlserver
 * check_netio
 * [check_netstat](check_netstat.md)
 * [check_onehost](check_onehost.md)
 * [check_onevm](check_onevm.md)
 * check_opencpu
 * check_packages2install
+* check_php-fpm-status
 * check_proc_mem
 * check_proc_ressources
 * check_proc_zombie
 * [check_psqlserver](check_psqlserver.md)
 * [check_reboot_required](check_reboot_required.md)
+* check_requirements
 * check_sensuplugins
 * check_smartstatus
 * [check_snmp_data](check_snmp_data.md)
+* check_snmp_printer
+* check_snmp_switch
 * [check_snmp_synology](check_snmp_synology.md)
 * check_ssl
+* check_ssl_certs
 * check_systemdservices
 * check_timesync
 * check_uptime