Doc/appendix: fix malformed markdown links

diff --git a/doc/23-appendix.md b/doc/23-appendix.md
index 25f5bc928ac26e64481be3f76053ed12d9178c64..902a29f7c1f6a851e161989e1dab0d1f739db965 100644 (file)
--- a/doc/23-appendix.md
+++ b/doc/23-appendix.md
@@ -692,16 +692,16 @@ Not supported: `debug_info`.
 
 #### <a id="schema-livestatus-hostsbygroup-table-attributes"></a> Livestatus Hostsbygroup Table Attributes
 
-All (hosts)[19-appendix.md#schema-livestatus-hosts-table-attributes] table attributes grouped with
-the (hostgroups)[19-appendix.md#schema-livestatus-hostgroups-table-attributes] table prefixed with `hostgroup_`.
+All [hosts](19-appendix.md#schema-livestatus-hosts-table-attributes) table attributes grouped with
+the [hostgroups](19-appendix.md#schema-livestatus-hostgroups-table-attributes) table prefixed with `hostgroup_`.
 
 #### <a id="schema-livestatus-servicesbygroup-table-attributes"></a> Livestatus Servicesbygroup Table Attributes
 
-All (services)[19-appendix.md#schema-livestatus-services-table-attributes] table attributes grouped with
-the (servicegroups)[19-appendix.md#schema-livestatus-servicegroups-table-attributes] table prefixed with `servicegroup_`.
+All [services](19-appendix.md#schema-livestatus-services-table-attributes) table attributes grouped with
+the [servicegroups](19-appendix.md#schema-livestatus-servicegroups-table-attributes) table prefixed with `servicegroup_`.
 
 #### <a id="schema-livestatus-servicesbyhostgroup-table-attributes"></a> Livestatus Servicesbyhostgroup Table Attributes
 
-All (services)[19-appendix.md#schema-livestatus-services-table-attributes] table attributes grouped with
-the (hostgroups)[19-appendix.md#schema-livestatus-hostgroups-table-attributes] table prefixed with `hostgroup_`.
+All [services](19-appendix.md#schema-livestatus-services-table-attributes) table attributes grouped with
+the [hostgroups](19-appendix.md#schema-livestatus-hostgroups-table-attributes) table prefixed with `hostgroup_`.