[1.x] Artifacts docs page (#1189)

CHANGELOG.next.md

@@ -53,6 +53,7 @@ Thanks, you're awesome :-) -->
 * Added a notice highlighting that the `tracing` fields are not nested under the
   namespace `tracing.` #1162
 * ES 6.x template data types will fallback to supported types. #1171, #1176, #1186
+* Add a documentation page discussing the experimental artifacts. #1189
 
 #### Deprecated
 

docs/additional.asciidoc

@@ -4,8 +4,10 @@
 * <<ecs-faq>>
 * <<ecs-glossary>>
 * <<ecs-contributing>>
+* <<ecs-artifacts>>
 
 // include::use-cases.asciidoc[]
 include::faq.asciidoc[]
 include::glossary.asciidoc[]
 include::contributing.asciidoc[]
+include::artifacts.asciidoc[]

docs/artifacts.asciidoc

@@ -0,0 +1,6 @@
+[[ecs-artifacts]]
+=== Generated Artifacts
+
+ECS maintains a collection of artifacts which are generated based on the schema. Examples include Elasticsearch index templates, CSV, and Beats field mappings. The maintained artifacts can be found in the {ecs_github_repo_link}/generated#artifacts-generated-from-ecs[ECS Github repo].
+
+Users can generate custom versions of these artifacts using the ECS project's tooling. See the tooling {ecs_github_repo_link}/USAGE.md[usage documentation] for more detail.

docs/index.asciidoc

@@ -5,6 +5,8 @@
 include::{asciidoc-dir}/../../shared/versions/stack/current.asciidoc[]
 include::{asciidoc-dir}/../../shared/attributes.asciidoc[]
 
+:ecs_github_repo_link: https://github.com/elastic/ecs/blob/master
+
 [[ecs-reference]]
 == Overview
 

docs/using-conventions.asciidoc

@@ -42,7 +42,7 @@ Elasticsearch can index text using datatypes:
 ===== Default Elasticsearch convention for indexing text fields
 
 Unless your index mapping or index template specifies otherwise
-(as the ECS index template does),
+(as the <<ecs-artifacts, ECS index template>> does),
 Elasticsearch indexes a text field as `text` at the canonical field name,
 and indexes a second time as `keyword`, nested in a multi-field.