guide: update and rename search index page

3 files changed, 16 insertions, 13 deletions

diff --git a/guide/src/SUMMARY.md b/guide/src/SUMMARY.md
index c7d12cb0..fda17bb0 100644
--- a/guide/src/SUMMARY.md
+++ b/guide/src/SUMMARY.md
@@ -22,7 +22,7 @@
     - [Release](./entity_release.md)
     - [Work](./entity_work.md)
 - [Public API](./http_api.md)
-    - [Search API](./search_api.md)
+    - [Search Index](./search_api.md)
     - [Bulk Exports](./bulk_exports.md)
     - [Cookbook](./cookbook.md)
 - [Contributing](./contributing.md)
diff --git a/guide/src/reference_graph.md b/guide/src/reference_graph.md
index a38a017b..26eec899 100644
--- a/guide/src/reference_graph.md
+++ b/guide/src/reference_graph.md
@@ -4,7 +4,7 @@
 Since 08/2021 references are available on an "inbound" and "outbound" basis in
 the web interface.
 
-The backend reference graph is available via the [Search API](./search_api.md)
+The backend reference graph is available via the [Search Index](./search_api.md)
 under the `fatcat_ref` index.
 
 ## Background and Mode of Operation
diff --git a/guide/src/search_api.md b/guide/src/search_api.md
index 91b7c8e9..801a0280 100644
--- a/guide/src/search_api.md
+++ b/guide/src/search_api.md
@@ -1,27 +1,30 @@
 
-# Search API
+# Search Index
 
 The Elasticsearch indices used to power metadata search, statistics, and graphs
 on the fatcat web interface are exposed publicly at
-`https://search.fatcat.wiki`. Third parties can make queries using the
-Elasticsearch API, which is well documented online and has client libraries in
-many programming languages.
+<https://search.fatcat.wiki/>. Third parties can make queries using the
+Elasticsearch API, which is [well documented online](https://www.elastic.co/guide/en/elasticsearch/reference/7.10/search-search.html)
+and has client libraries in many programming languages.
 
-A thin proxy (`es-public-proxy`) filters requests to avoid expensive queries
-which could cause problems for search queries on the web interface, but most of
-the Elasticsearch API is supported, including powerful aggregation queries.
+A thin proxy ([`es-public-proxy`](https://gitlab.com/bnewbold/es-public-proxy))
+filters requests to avoid expensive queries which could cause problems for
+search queries on the web interface, but most of the Elasticsearch API is
+supported, including powerful aggregation queries. CORS headers are supported,
+meaning that queries can be made directly from web browsers.
 
 There is a short delay between updates to the fatcat catalog (via the main API)
 and updates to the search index.
 
 Notable indices include:
 
-- `fatcat_release`: release entity metadata
-- `fatcat_container`: container entity metadata
-- `fatcat_ref`: reference graph
+- `fatcat_release`: release entity metadata ([schema](https://search.fatcat.wiki/fatcat_release/_mapping))
+- `fatcat_container`: container entity metadata ([schema](https://search.fatcat.wiki/fatcat_container/_mapping))
+- `fatcat_ref`: reference graph ([schema](https://search.fatcat.wiki/fatcat_ref/_mapping))
+- `scholar_fulltext`: [scholar.archive.org](https://scholar.archive.org) full-text index (body text can be queried, but not downloaded or extracted from index) ([schema](https://search.fatcat.wiki/scholar_fulltext/_mapping))
 
 Schemas for these indices can be fetched directly from the index (eg,
-`https://search.fatcat.wiki/fatcat_release/_mapping`), and are versioned in the
+<https://search.fatcat.wiki/fatcat_release/_mapping>), and are versioned in the
 fatcat git repository under `fatcat:extra/eleasticsearch/`. They are a
 simplification and transform of the regular entity schemas, and include some
 synthesized fields (such as "preservation status" for releases). Note that the