Typo fixes for IPfailover

Author: bmcelvee

modules/nw-ipfailover-configuration.adoc

@@ -144,7 +144,7 @@ spec:
 <1> The name of the IP failover deployment.
 <2> The list of IP address ranges to replicate. This must be provided. For example, `1.2.3.4-6,1.2.3.9`.
 <3> The number of groups to create for VRRP. If not set, a group is created for each virtual IP range specified with the `OPENSHIFT_HA_VIP_GROUPS` variable.
-<4> The interface name for IP failover uses to send VRRP traffic. By default, `eth0` is used.
+<4> The interface name that IP failover uses to send VRRP traffic. By default, `eth0` is used.
 <5> The IP failover pod tries to open a TCP connection to this port on each VIP. If connection is established, the service is considered to be running. If this port is set to `0`, the test always passes. The default value is `80`.
 <6> The offset value used to set the virtual router IDs. Using different offset values allows multiple IP failover configurations to exist within the same cluster. The default offset is `0`, and the allowed range is `0` through `255`.
 <7> The number of replicas to create. This must match `spec.replicas` value in IP failover deployment configuration. The default value is `2`.

modules/nw-ipfailover-configuring-check-notify-scripts.adoc

@@ -51,7 +51,7 @@ exit 0
 $ oc create configmap mycustomcheck --from-file=mycheckscript.sh
 ----
 +
-. Add the script to the pod. The `defaultMode` for the mounted config map files must able to run is you use `oc` commands or edit the deployment configuration. A value of `0755`, `493` decimal, is typical:
+. Add the script to the pod. The `defaultMode` for the mounted config map files must able to run by using `oc` commands or by editing the deployment configuration. A value of `0755`, `493` decimal, is typical:
 +
 [source,terminal]
 ----

modules/nw-ipfailover-environment-variables.adoc

@@ -19,7 +19,7 @@ The following table contains the variables used to configure IP failover.
 
 |`OPENSHIFT_HA_NETWORK_INTERFACE`
 |
-|The interface name for IP failover uses to send Virtual Router Redundancy Protocol (VRRP) traffic. The default value is `eth0`.
+|The interface name that IP failover uses to send Virtual Router Redundancy Protocol (VRRP) traffic. The default value is `eth0`.
 
 |`OPENSHIFT_HA_REPLICA_COUNT`
 |`2`
@@ -55,5 +55,5 @@ The following table contains the variables used to configure IP failover.
 
 |`OPENSHIFT_HA_PREEMPTION`
 |`preempt_nodelay 300`
-|The strategy for handling a new higher priority host. The `nopreempt` strategy does not move master from the lower priority host to the higher priority host. 
+|The strategy for handling a new higher priority host. The `nopreempt` strategy does not move master from the lower priority host to the higher priority host.
 |===