Created a guide for the bash ssh command (#19450)

* Created a guide about the mkdir command

* Update index.md

* Added a guide for the rm command in bash

* Created a new guide for the chmod command

* Created the guide for the ssh command

* Add note on user names

client/src/pages/guide/english/bash/bash-ssh/index.md

@@ -0,0 +1,15 @@
+---
+title: Bash ssh
+---
+
+## Bash command: ssh
+
+**Used to connect to a remote computer** ,for example `ssh 123.456.789.012` will try to establish a connection with that host. The
+address of the remote computer can be provided using an IP address or, if provided, an identifier.
+
+If the remote computer requires user login, the form `ssh username@remote_address` can be used, which will then prompt for the user
+password on successful connection.
+
+
+### More Information:
+* [Wikipedia](https://en.wikipedia.org/wiki/Secure_Shell)