docs: fix broken link and hardcoded version strings in commands.mdx

The skill install section linked to manage-sandboxes/install-openclaw-plugins
which does not exist. The file lives under deployment/, so the correct relative
path is ../deployment/install-openclaw-plugins.

Expected-output code blocks showed hardcoded OpenClaw v2026.5.27 and Hermes
v2026.5.16. These go stale on every release bump. Replaced with the vYYYY.M.D
format placeholder that conveys the versioning scheme without locking to a
specific release.

Closes #5445

Signed-off-by: ShauryaaSharma <shauryasofficial27@gmail.com>

Author: ShauryaaSharma

docs/reference/commands.mdx

@@ -722,7 +722,7 @@ Expected output:
 
 ```text
 ...
-    Agent:    OpenClaw v2026.5.27
+    Agent:    OpenClaw vYYYY.M.D
 ...
 ```
 
@@ -748,7 +748,7 @@ Expected output:
 
 ```text
 ...
-    Agent:    Hermes v2026.5.16
+    Agent:    Hermes vYYYY.M.D
 ...
 ```
 
@@ -1229,7 +1229,7 @@ Skill names must contain only alphanumeric characters, dots, hyphens, and unders
 
 <AgentOnly variant="openclaw">
 
-OpenClaw plugins are a different kind of extension. To install an OpenClaw plugin, see [Install OpenClaw Plugins](../manage-sandboxes/install-openclaw-plugins).
+OpenClaw plugins are a different kind of extension. To install an OpenClaw plugin, see [Install OpenClaw Plugins](../deployment/install-openclaw-plugins).
 For OpenClaw, the command uploads the skill to the OpenClaw state directory and mirrors it into `$HOME/.openclaw/skills/<name>` when the agent home directory differs from the state directory.
 That mirror makes skills listed by `openclaw skills list` available at session startup.
 If mirror creation fails, NemoClaw prints a warning so you can reinstall or inspect the home directory permissions.