A few more missing R_MSEC instances

Signed-off-by: mrgarris0n <gergely.karacsonyi@gmail.com>

Author: mrgarris0n

doc/_admin-guide/180_Best_practices_and_examples/005_Load_balancing_logs/000_Round_robin.md

@@ -8,7 +8,7 @@ description: >-
   balance your logs between multiple {{ site.product.short_name }} destinations.
 ---
 
-**TIP:** If ${R_MSEC} is not precise enough, you can replace it with R_USEC
+**TIP:** If ${R_MSEC} is not precise enough, you can replace it with ${R_USEC}
 (which uses microseconds instead of milliseconds).
 {: .notice--info}
 
@@ -62,4 +62,4 @@ any other {{ site.product.short_name }} destinations).
 
 For an alternative method to use the round robin load balancing method
 based on the ${R_MSEC} macro, see
-Configuration generator for the load balancing method based on MSEC hashing.
+Configuration generator for the load balancing method based on ${R_MSEC} hashing.

doc/_admin-guide/180_Best_practices_and_examples/005_Load_balancing_logs/001_msec_hashing.md

@@ -1,10 +1,10 @@
 ---
-title: Configuration generator for the load balancing method based on MSEC hashing
+title: Configuration generator for the load balancing method based on ${R_MSEC} hashing
 short_title: Configuration generator
 id: adm-pract-msec
 description: >-
   This section describes a configuration generator for the load balancing
-  method based on MSEC hashing to load balance your logs between multiple
+  method based on ${R_MSEC} hashing to load balance your logs between multiple
   {{ site.product.short_name }} destinations.
 ---
 
@@ -29,4 +29,4 @@ destination d_lb {
 ```
 
 Where destinations share the same configuration except for the
-destination address, balancing is based on MSEC hashing.
+destination address, balancing is based on ${R_MSEC} hashing.