Consistent punctuation in list (review feedback)

Co-authored-by: Ralf Handl <[email protected]>

Author: handrews

versions/3.0.4.md

@@ -2075,7 +2075,7 @@ for specifications with external references.
 Keys and values for `parameters` have multiple syntaxes:
 
 * The key can either be just the parameter name, or can be qualified using the [parameter location](#parameterIn) `[{in}.]{name}` for operations that use the same parameter name in different locations (e.g. `path.id`).
-* The value can be a literal value or a [Runtime Expression](#runtimeExpression)
+* The value can be a literal value or a [Runtime Expression](#runtimeExpression).
 
 Certain keys and values for `parameters` can be ambiguous, in which case their handling is implementation-defined as it was not spelled out in earlier versions of OAS 3.0.  However, it is RECOMMENDED that: