Feature: Improve guidance into new documentation section

Author: amotl

docs/feature/index.md

@@ -1,20 +1,24 @@
 (feature)=
 (features)=
-
+(all-features)=
 # All Features
 
+:::{include} /_include/styles.html
+:::
+
 All features of CrateDB at a glance.
 
 :::::{grid} 1 3 3 3
 :margin: 4 4 0 0
 :padding: 0
 :gutter: 2
 
-::::{grid-item-card} {material-outlined}`lightbulb;2em` Fundamentals
+::::{grid-item-card} {material-outlined}`lightbulb;2em` Functional
 :::{toctree}
 :maxdepth: 1
 
 sql/index
+connectivity/index
 relational/index
 document/index
 search/index
@@ -31,11 +35,6 @@ industry-standard SQL.
 :::{toctree}
 :maxdepth: 1
 
-connectivity/index
-:::
-:::{toctree}
-:maxdepth: 1
-
 cluster/index
 snapshot/index
 cloud/index
@@ -50,6 +49,7 @@ architecture, inherited from Elasticsearch.
 ::::{grid-item-card} {material-outlined}`read_more;2em` Advanced
 :::{toctree}
 :maxdepth: 1
+
 query/index
 generated/index
 cursor/index
@@ -65,90 +65,84 @@ operations, all based on standard SQL.
 :::::
 
 
-:::{rubric} Features and Use Cases
-:::
-
-Foundational features of CrateDB, and how they are applied within software
-solutions and application platforms in different scenarios and environments.
-
-
-:::{rubric} Features
+:::{rubric} Connect and Integrate
 :::
+Connect to CrateDB using traditional database drivers, and integrate CrateDB
+with popular 3rd-party applications in open-source and proprietary software
+landscapes.
 
 ::::{grid} 1 2 2 2
 :margin: 4 4 0 0
 :padding: 0
 :gutter: 2
 
-
-:::{grid-item-card} {material-outlined}`description;2em` Document Store
-:link: document
+:::{grid-item-card} {material-outlined}`link;2em` Connectivity
+:link: connectivity
 :link-type: ref
-:link-alt: About CrateDB's OBJECT data type
+:link-alt: About connection options with CrateDB
 
-Learn how to use CrateDB's OBJECT data type to efficiently store JSON or
-other structured data, also nested, and how to query this data with ease.
+Connect to your CrateDB cluster using drivers, frameworks, and adapters.
 +++
 **What's inside:**
-CrateDB can do the same like Lotus Notes / Domino, CouchDB, MongoDB,
-and PostgreSQL's JSON data type.
+Connectivity and integration options with database drivers
+and applications, libraries, and frameworks.
 :::
 
 
-:::{grid-item-card} {material-outlined}`manage_search;2em` Full-Text Search
-:link: fulltext
+:::{grid-item-card} {material-outlined}`sync;2em` Import and Export
+:link: import-export
 :link-type: ref
-:link-alt: About CrateDB's full-text search capabilities
+:link-alt: About time series data import and export
 
-Learn how to set up your database for full-text search, and how to query
-text data efficiently, to make sense of large volumes of unstructured
-information.
+Import data into and export data from your CrateDB cluster.
 +++
 **What's inside:**
-Like Elasticsearch, CrateDB is based on Lucene, the premier industry-grade
-full-text search engine library.
+A variety of options to connect and integrate with 3rd-party
+ETL applications.
 :::
 
 ::::
 
 
-:::{rubric} See Also
+:::{rubric} Highlights
 :::
-Connect to and integrate with CrateDB.
+Important fundamental features of CrateDB, and how they are applied within software
+solutions and application platforms in different scenarios and environments.
 
 ::::{grid} 1 2 2 2
 :margin: 4 4 0 0
 :padding: 0
 :gutter: 2
 
-:::{grid-item-card} {material-outlined}`link;2em` Connectivity
-:link: connectivity
+
+:::{grid-item-card} {material-outlined}`description;2em` Document Store
+:link: document
 :link-type: ref
-:link-alt: About connection options with CrateDB
+:link-alt: About CrateDB's OBJECT data type
 
-Connect to your CrateDB cluster using drivers, frameworks, and adapters.
+Learn about CrateDB's OBJECT data type, how to efficiently store JSON
+or other structured data, also nested, and how to query this data with
+ease, fully indexed thus performant from the start, optionally using
+relational joins.
 +++
 **What's inside:**
-Connectivity and integration options with database drivers
-and applications, libraries, and frameworks.
+CrateDB can do the same like Lotus Notes / Domino, CouchDB, MongoDB,
+and PostgreSQL's JSON data type.
 :::
 
 
-:::{grid-item-card} {material-outlined}`sync;2em` Import and Export
-:link: import-export
+:::{grid-item-card} {material-outlined}`manage_search;2em` Full-Text Search
+:link: fulltext
 :link-type: ref
-:link-alt: About time series data import and export
+:link-alt: About CrateDB's full-text search capabilities
 
-Import data into and export data from your CrateDB cluster.
+Learn about CrateDB's Okapi BM25 implementation, how to set up your database
+for full-text search, and how to query text data efficiently, to make sense
+of large volumes of unstructured information.
 +++
 **What's inside:**
-A variety of options to connect and integrate with 3rd-party
-ETL applications.
+Like Elasticsearch, CrateDB is based on Lucene, the premier industry-grade
+full-text search engine library.
 :::
 
-
 ::::
-
-
-```{include} /_include/styles.html
-```

docs/index.md

@@ -8,6 +8,13 @@
 
 Guides and tutorials about how to use CrateDB and CrateDB Cloud in practice.
 
+:::{card} Introduction
+:link: all-features
+:link-type: ref
+
+Start by reading about all features of CrateDB at a glance.
+:::
+
 CrateDB is a distributed and scalable SQL database for storing and analyzing
 massive amounts of data in near real-time, even with complex queries. It is
 PostgreSQL-compatible, and based on Lucene.