[DOCS] Reformat delete index API docs

docs/reference/indices/delete-index.asciidoc

@@ -1,7 +1,10 @@
 [[indices-delete-index]]
-=== Delete Index
+=== Delete index API
+++++
+<titleabbrev>Delete index</titleabbrev>
+++++
 
-The delete index API allows to delete an existing index.
+Deletes an existing index.
 
 [source,js]
 --------------------------------------------------
@@ -10,13 +13,42 @@ DELETE /twitter
 // CONSOLE
 // TEST[setup:twitter]
 
-The above example deletes an index called `twitter`. Specifying an index or a
-wildcard expression is required. Aliases cannot be used to delete an index.
-Wildcard expressions are resolved to matching concrete indices only.
 
-The delete index API can also be applied to more than one index, by either
-using a comma separated list, or on all indices (be careful!) by using `_all` or `*` as index.
+[[delete-index-api-request]]
+==== {api-request-title}
 
-In order to disable allowing to delete indices via wildcards or `_all`,
-set `action.destructive_requires_name` setting in the config to `true`.
-This setting can also be changed via the cluster update settings api.
+`DELETE /<index>`
+
+
+[[delete-index-api-path-params]]
+==== {api-path-parms-title}
+
+`<index>`::
++
+--
+(Request, string) Comma-separated list or wildcard expression of indices to
+delete.
+
+In this parameter, wildcard expressions match only open, concrete indices. You
+cannot delete an index using an <<indices-aliases,alias>>.
+
+To delete all indices, use `_all` or `*` . To disallow the deletion of indices
+with `_all` or wildcard expressions, change the
+`action.destructive_requires_name` cluster setting to `true`. You can update
+this setting in the `elasticsearch.yml` file or using the
+<<cluster-update-settings,cluster update settings>> API.
+--
+
+
+[[delete-index-api-query-params]]
+==== {api-query-parms-title}
+
+include::{docdir}/rest-api/common-parms.asciidoc[tag=allow-no-indices]
+
+include::{docdir}/rest-api/common-parms.asciidoc[tag=expand-wildcards]
++
+Defaults to `open`.
+
+include::{docdir}/rest-api/common-parms.asciidoc[tag=index-ignore-unavailable]
+
+include::{docdir}/rest-api/common-parms.asciidoc[tag=timeoutparms]