tailscale-ssh: add page (#8151)

* tailscale-ssh: add page
* tailscale-ssh: cosmetic fixes

Co-authored-by: Emily Grace Seville <emilyseville7cf@gmail.com>
Signed-off-by: Muhammad Falak R Wani <falakreyaz@gmail.com>

pages/common/tailscale-ssh.md

@@ -0,0 +1,12 @@
+# tailscale ssh
+
+> SSH to a Tailscale machine (Linux Only).
+> More information: <https://tailscale.com/kb/1193/tailscale-ssh>.
+
+- Advertise/Disable SSH on the host:
+
+`sudo tailscale up --ssh={{true|false}}`
+
+- SSH to a specific host which has Tailscale-SSH enabled:
+
+`tailscale ssh {{username}}@{{host}}`