diff --git a/docs/source/guides/admin-guides/references/man5/discoverydata.5.rst b/docs/source/guides/admin-guides/references/man5/discoverydata.5.rst
index b187e5b5f..014c3c685 100644
--- a/docs/source/guides/admin-guides/references/man5/discoverydata.5.rst
+++ b/docs/source/guides/admin-guides/references/man5/discoverydata.5.rst
@@ -19,7 +19,7 @@ SYNOPSIS
 ********
 
 
-\ **discoverydata Attributes:**\   \ *uuid*\ , \ *node*\ , \ *method*\ , \ *discoverytime*\ , \ *arch*\ , \ *cpucount*\ , \ *cputype*\ , \ *memory*\ , \ *mtm*\ , \ *serial*\ , \ *nicdriver*\ , \ *nicipv4*\ , \ *nichwaddr*\ , \ *nicpci*\ , \ *nicloc*\ , \ *niconboard*\ , \ *nicfirm*\ , \ *switchname*\ , \ *switchaddr*\ , \ *switchdesc*\ , \ *switchport*\ , \ *otherdata*\ , \ *comments*\ , \ *disable*\ 
+\ **discoverydata Attributes:**\   \ *uuid*\ , \ *node*\ , \ *method*\ , \ *discoverytime*\ , \ *arch*\ , \ *cpucount*\ , \ *cputype*\ , \ *memory*\ , \ *mtm*\ , \ *serial*\ , \ *nicdriver*\ , \ *nicipv4*\ , \ *nichwaddr*\ , \ *nicpci*\ , \ *nicloc*\ , \ *niconboard*\ , \ *nicfirm*\ , \ *switchname*\ , \ *switchaddr*\ , \ *switchdesc*\ , \ *switchport*\ , \ *otherdata*\ , \ *comments*\ , \ *disable*\
 
 
 ***********
@@ -36,148 +36,148 @@ discoverydata Attributes:
 
 
 
-\ **uuid**\ 
- 
+\ **uuid**\
+
  The uuid of the node which send out the discovery request.
- 
 
 
-\ **node**\ 
- 
+
+\ **node**\
+
  The node name which assigned to the discovered node.
- 
 
 
-\ **method**\ 
- 
+
+\ **method**\
+
  The method which handled the discovery request. The method could be one of: switch, blade, profile, sequential.
- 
 
 
-\ **discoverytime**\ 
- 
+
+\ **discoverytime**\
+
  The last time that xCAT received the discovery message.
- 
 
 
-\ **arch**\ 
- 
+
+\ **arch**\
+
  The architecture of the discovered node. e.g. x86_64.
- 
 
 
-\ **cpucount**\ 
- 
+
+\ **cpucount**\
+
  The number of cores multiply by threads core supported for the discovered node. e.g. 192.
- 
 
 
-\ **cputype**\ 
- 
+
+\ **cputype**\
+
  The cpu type of the discovered node. e.g. Intel(R) Xeon(R) CPU E5-2690 0 @ 2.90GHz
- 
 
 
-\ **memory**\ 
- 
+
+\ **memory**\
+
  The memory size of the discovered node. e.g. 198460852
- 
 
 
-\ **mtm**\ 
- 
+
+\ **mtm**\
+
  The machine type model of the discovered node. e.g. 786310X
- 
 
 
-\ **serial**\ 
- 
+
+\ **serial**\
+
  The serial number of the discovered node. e.g. 1052EFB
- 
 
 
-\ **nicdriver**\ 
- 
+
+\ **nicdriver**\
+
  The driver of the nic. The value should be comma separated <nic name!driver name>. e.g. eth0!be2net,eth1!be2net
- 
 
 
-\ **nicipv4**\ 
- 
+
+\ **nicipv4**\
+
  The ipv4 address of the nic. The value should be comma separated <nic name!ipv4 address>. e.g. eth0!10.0.0.212/8
- 
 
 
-\ **nichwaddr**\ 
- 
+
+\ **nichwaddr**\
+
  The hardware address of the nic. The should will be comma separated <nic name!hardware address>. e.g. eth0!34:40:B5:BE:DB:B0,eth1!34:40:B5:BE:DB:B4
- 
 
 
-\ **nicpci**\ 
- 
+
+\ **nicpci**\
+
  The pic device of the nic. The value should be comma separated <nic name!pci device>. e.g. eth0!0000:0c:00.0,eth1!0000:0c:00.1
- 
 
 
-\ **nicloc**\ 
- 
+
+\ **nicloc**\
+
  The location of the nic. The value should be comma separated <nic name!nic location>. e.g. eth0!Onboard Ethernet 1,eth1!Onboard Ethernet 2
- 
 
 
-\ **niconboard**\ 
- 
+
+\ **niconboard**\
+
  The onboard info of the nic. The value should be comma separated <nic name!onboard info>. e.g. eth0!1,eth1!2
- 
 
 
-\ **nicfirm**\ 
- 
+
+\ **nicfirm**\
+
  The firmware description of the nic. The value should be comma separated <nic name!fimware description>. e.g. eth0!ServerEngines BE3 Controller,eth1!ServerEngines BE3 Controller
- 
 
 
-\ **switchname**\ 
- 
+
+\ **switchname**\
+
  The switch name which the nic connected to. The value should be comma separated <nic name!switch name>. e.g. eth0!c909f06sw01
- 
 
 
-\ **switchaddr**\ 
- 
+
+\ **switchaddr**\
+
  The address of the switch which the nic connected to. The value should be comma separated <nic name!switch address>. e.g. eth0!192.168.70.120
- 
 
 
-\ **switchdesc**\ 
- 
+
+\ **switchdesc**\
+
  The description of the switch which the nic connected to. The value should be comma separated <nic name!switch description>. e.g. eth0!IBM Flex System Fabric EN4093 10Gb Scalable Switch, flash image: version 7.2.6, boot image: version 7.2.6
- 
 
 
-\ **switchport**\ 
- 
+
+\ **switchport**\
+
  The port of the switch that the nic connected to. The value should be comma separated <nic name!switch port>. e.g. eth0!INTA2
- 
 
 
-\ **otherdata**\ 
- 
+
+\ **otherdata**\
+
  The left data which is not parsed to specific attributes (The complete message comes from genesis)
- 
 
 
-\ **comments**\ 
- 
+
+\ **comments**\
+
  Any user-written notes.
- 
 
 
-\ **disable**\ 
- 
+
+\ **disable**\
+
  Set to 'yes' or '1' to comment out this row.
- 
+
 
 
 
@@ -186,5 +186,5 @@ SEE ALSO
 ********
 
 
-\ **nodels(1)**\ , \ **chtab(8)**\ , \ **tabdump(8)**\ , \ **tabedit(8)**\ 
+\ **nodels(1)**\ , \ **chtab(8)**\ , \ **tabdump(8)**\ , \ **tabedit(8)**\