Re-level non-docs content to top of repo and rename content→docs

docs/references/http-websocket-apis/public-api-methods/utility-methods/ping.md

@@ -0,0 +1,89 @@
+---
+html: ping.html
+parent: utility-methods.html
+seo:
+    description: Confirm connectivity with the server.
+labels:
+  - Core Server
+---
+# ping
+[[Source]](https://github.com/XRPLF/rippled/blob/master/src/ripple/rpc/handlers/Ping.cpp "Source")
+
+The `ping` command returns an acknowledgement, so that clients can test the connection status and latency.
+
+## Request Format
+An example of the request format:
+
+{% tabs %}
+
+{% tab label="WebSocket" %}
+```json
+{
+    "id": 1,
+    "command": "ping"
+}
+```
+{% /tab %}
+
+{% tab label="JSON-RPC" %}
+```json
+{
+    "method": "ping",
+    "params": [
+        {}
+    ]
+}
+```
+{% /tab %}
+
+{% tab label="Commandline" %}
+```sh
+#Syntax: ping
+rippled ping
+```
+{% /tab %}
+
+{% /tabs %}
+
+[Try it! >](/resources/dev-tools/websocket-api-tool#ping)
+
+The request includes no parameters.
+
+## Response Format
+
+An example of a successful response:
+
+{% tabs %}
+
+{% tab label="WebSocket" %}
+```json
+{
+    "id": 1,
+    "result": {},
+    "status": "success",
+    "type": "response"
+}
+```
+{% /tab %}
+
+{% tab label="JSON-RPC" %}
+```json
+200 OK
+
+{
+    "result": {
+        "status": "success"
+    }
+}
+```
+{% /tab %}
+
+{% /tabs %}
+
+The response follows the [standard format][], with a successful result containing no fields. The client can measure the round-trip time from request to response as latency.
+
+## Possible Errors
+
+* Any of the [universal error types][].
+
+{% raw-partial file="/_snippets/common-links.md" /%}