CHANGELOG and docs

CHANGELOG.md

@@ -4,6 +4,7 @@
 - [PR #888](https://github.com/rqlite/rqlite/pull/888): Expose stats about BoltDB on the `status/` endpoint.
 - [PR #889](https://github.com/rqlite/rqlite/pull/889): Add OS-level information to `status/` output.
 - [PR #892](https://github.com/rqlite/rqlite/pull/892): More Snapshot metrics.
+- [PR #894](https://github.com/rqlite/rqlite/pull/894): Support controlling timeout on nodes/ endpoint.
 
 ## 6.4.3 (September 8th 2021)
 ### Implementation changes and bug fixes

DOC/DIAGNOSTICS.md

@@ -37,6 +37,7 @@ runtime:
 ```bash
 curl localhost:4001/nodes?pretty
 curl localhost:4001/nodes?nonvoters&pretty  # Also check non-voting nodes.
+curl localhost:4001/nodes?timeout=5s  # Give up if all nodes don't respond within 5 seconds. Default is 30 seconds.
 ```
 
 You can also request the same nodes information via the CLI: