Doc changes for moving Backup Repository to Infrastructure section in UI (#578)

diff --git a/source/_static/images/B&R-Backup-Respository.png b/source/_static/images/B&R-Backup-Repository.png
similarity index 100%
rename from source/_static/images/B&R-Backup-Respository.png
rename to source/_static/images/B&R-Backup-Repository.png
Binary files differ
diff --git a/source/adminguide/nas_plugin.rst b/source/adminguide/nas_plugin.rst
index 6a0441f..1c7b892 100644
--- a/source/adminguide/nas_plugin.rst
+++ b/source/adminguide/nas_plugin.rst
@@ -71,7 +71,7 @@
 ================================= ========================
 
 Once the above two configurations are set, restart the cloudstack-management service. After restart check the Settings of the Zone where you want to enable NAS backups - make sure that the "backup.framework.enabled"="true" on the Setting tab of the Zone. Once this is done, we can add the backup repository for the 'nas' Backup and Recovery plugin.
-Navigate to the Configuration -> Backup Repository. Click on 'Add Backup Repository' and fill the form.
+Navigate to the Infrastructure -> Backup Repository. Click on 'Add Backup Repository' and fill the form.
 
 =================== ========================
 Field               Value
@@ -79,11 +79,11 @@
 Name                A suitable name to represent the Backup Repository
 Address             URL, in case of NFS <server IP>:/path
 Type                NFS / CIFS / CEPH
-Mount options       Any mount point options to be passed while mouting this storage on the hypervisor.
+Mount options       Any mount point options to be passed while mounting this storage on the hypervisor.
 Zone                The zone in CloudStack with which this Backup Repository must be associated.
 =================== ========================
 
-.. image:: /_static/images/B&R-Backup-Respository.png
+.. image:: /_static/images/B&R-Backup-Repository.png
    :align: center
    :alt: NAS Backup repository