Create roadmap document (#696)

* Create ROADMAP.md

* Update readme

* Fix formatting

README.md

@@ -45,6 +45,9 @@ For non-Neptune databases, we recommend at least TinkerPop 3.6.
 
 ## Features
 
+If you are interested in where Graph Explorer is headed in the future then check
+out our [roadmap](./ROADMAP.md) and participate in the discussions.
+
 ### Settings UI
 
 #### General Settings

ROADMAP.md

@@ -0,0 +1,38 @@
+# Roadmap
+
+This document describes the future roadmap for Graph Explorer. These items are
+subject to change.
+
+We encourage you to participate in the discussion within the individual roadmap
+issues linked below.
+
+## Q1 2025
+
+- [URL Sharing](https://github.com/aws/graph-explorer/issues/684)
+
+## Q2 2025
+
+- [Schema visualization](https://github.com/aws/graph-explorer/issues/685)
+- [Improved graph rendering](https://github.com/aws/graph-explorer/issues/691)
+
+## Q3 2025
+
+- [Query editor for Gremlin](https://github.com/aws/graph-explorer/issues/686)
+- [Query editor for openCypher](https://github.com/aws/graph-explorer/issues/687)
+
+## Backlog
+
+These items are not yet prioritized.
+
+- [Query editor for SPARQL](https://github.com/aws/graph-explorer/issues/688)
+- [Natural language queries](https://github.com/aws/graph-explorer/issues/690)
+- [Persisted and shared user settings](https://github.com/aws/graph-explorer/issues/689)
+- [Graph data editing](https://github.com/aws/graph-explorer/issues/693)
+- [Graph algorithms](https://github.com/aws/graph-explorer/issues/694)
+- [Graph Explorer local](https://github.com/aws/graph-explorer/issues/692)
+
+## Out of scope
+
+These items have been considered but are not currently prioritized.
+
+- [Embeddable component](https://github.com/aws/graph-explorer/issues/695)