Add extends_documentation_fragment back (#22293)

lib/ansible/modules/network/junos/junos_command.py

@@ -33,6 +33,7 @@ description:
     read from the device.  This module includes an
     argument that will cause the module to wait for a specific condition
     before returning or timing out if the condition is not met.
+extends_documentation_fragment: junos
 options:
   commands:
     description:

lib/ansible/modules/network/junos/junos_config.py

@@ -33,6 +33,7 @@ description:
     configuration running on Juniper JUNOS devices.  It provides a set
     of arguments for loading configuration, performing rollback operations
     and zeroing the active configuration on the device.
+extends_documentation_fragment: junos
 options:
   lines:
     description:

lib/ansible/modules/network/junos/junos_rpc.py

@@ -33,6 +33,7 @@ description:
     specified RPC using the NetConf transport.  The reply is then
     returned to the playbook in the c(xml) key.  If an alternate output
     format is requested, the reply is transformed to the requested output.
+extends_documentation_fragment: junos
 options:
   rpc:
     description:

lib/ansible/modules/network/junos/junos_user.py

@@ -33,6 +33,7 @@ description:
     network devices running the JUNOS operating system.  It provides
     a set of arguments for creating, removing and updating locally
     defined accounts
+extends_documentation_fragment: junos
 options:
   users:
     description: