Update modules/about/ref-rhdh-sizing.adoc

Co-authored-by: Fortune Ndlovu <[email protected]>

Author: deerskindoll

modules/about/ref-rhdh-sizing.adoc

@@ -38,9 +38,8 @@ Table 2 lists recommended sizing requirements for {product-docs-link}/html-singl
 |===
 
 .Recommended sizing for external PostgreSQL deployments with {product}
-[cols="25%,25%,25%,25%,25%" frame="all", options="header"]
+[cols="25%,25%,25%,25%,25%", frame="all", options="header"]
 |===
-
 |Sizing legend
 |Small-scale
 |Mid-scale
@@ -82,6 +81,7 @@ Table 2 lists recommended sizing requirements for {product-docs-link}/html-singl
 |1 primary, 1 standby
 |1 primary, 1 synchronous standby
 |1 primary, 1 synchronous standby, 1 asynchronous replica
+|===