Add top-level docs command

website/source/docs/commands/kv.html.markdown

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+---
+layout: "docs"
+page_title: "Commands: KV"
+sidebar_current: "docs-commands-kv"
+---
+
+# Consul KV
+
+Command: `consul kv`
+
+The `kv` command is used to interact with Consul's key-value store via the
+command line. It exposes top-level commands for inserting, updating, reading,
+and deleting from the store.
+
+The key-value store is also accessible via the
+[HTTP API](docs/agent/http/kv.html).
+
+## Usage
+
+Usage: `consul kv <subcommand>`
+
+For the exact documentation for your Consul version, run `consul kv -h` to view
+the complete list of subcommands.
+
+```text
+Usage: consul kv <subcommand> [options] [args]
+
+  # ...
+
+Subcommands:
+
+    delete    Removes data from the KV store
+    get       Retrieves or lists data from the KV store
+    put       Sets or updates data in the KV store
+```
+
+For more information, examples, and usage about a subcommand, click on the name
+of the subcommand in the sidebar or one of the links below:
+
+- [delete](/docs/commands/kv/delete.html)
+- [get](/docs/commands/kv/get.html)
+- [put](/docs/commands/kv/put.html)
+
+## Basic Examples
+
+To create or update the key named "redis/config/connections" to the value "5" in
+Consul's key-value store:
+
+```text
+$ consul kv put redis/config/connections 5
+Success! Data written to: redis/config/connections
+```
+
+To read a value back from Consul:
+
+```text
+$ consul kv get redis/config/connections
+5
+```
+
+Or you can query for detailed information:
+
+```text
+$ consul kv get -detailed redis/config/connections
+CreateIndex      336
+Flags            0
+Key              redis/config/connections
+LockIndex        0
+ModifyIndex      336
+Session          -
+Value            5
+```
+
+Finally, deleting a key is just as easy:
+
+```text
+$ consul kv delete redis/config/connections
+Success! Data deleted at key: redis/config/connections
+```
+
+For more examples, ask for subcommand help or view the subcommand documentation
+by clicking on one of the links in the sidebar.