readd anchors that are breaking 8.x tests

Author: shainaraskas

docs/reference/modules/discovery/publishing.asciidoc

@@ -77,7 +77,7 @@ and latency of the network interconnections between all nodes in the cluster.
 You must therefore ensure that the storage and networking available to the
 nodes in your cluster are good enough to meet your performance goals.
 
-[[dangling-indices]]
+[[dangling-index]]
 ==== Dangling indices
 
 When a node joins the cluster, if it finds any shards stored in its local

docs/reference/modules/network.asciidoc

@@ -287,7 +287,7 @@ include::network/tracers.asciidoc[]
 
 include::network/threading.asciidoc[]
 
-[[readiness-tcp-port]]
+[[tcp-readiness-port]]
 ==== TCP readiness port
 
 preview::[]

docs/reference/modules/node.asciidoc

@@ -46,6 +46,8 @@ The following additional roles are available:
 
 * `voting_only`
 
+[[coordinating-only-node]]If you leave `node.roles` unset, then the node is considered to be a <<coordinating-only-node-role,coordinating only node>>.
+
 [IMPORTANT]
 ====
 If you set `node.roles`, ensure you specify every node role your cluster needs.

docs/reference/node-roles.asciidoc

@@ -359,7 +359,7 @@ node.roles: [ ingest ]
 ----
 
 [discrete]
-[[coordinating-only-node]]
+[[coordinating-only-node-role]]
 ==== Coordinating only node
 
 If you take away the ability to be able to handle master duties, to hold data,

docs/reference/setup/important-settings.asciidoc

@@ -41,6 +41,7 @@ include::important-settings/discovery-settings.asciidoc[]
 
 include::important-settings/heap-size.asciidoc[]
 
+[[heap-dump-path]]
 include::important-settings/heap-dump-path.asciidoc[]
 
 include::important-settings/gc-logging.asciidoc[]