DOCS-9642: typo and update description of field

Author: kay-kim

source/includes/apiargs-option-collation-fields.yaml

@@ -101,7 +101,7 @@ name: caseFirst
 arg_name: field
 description: |
 
-   A flag that determines sort order of case differences during
+   A field that determines sort order of case differences during
    tertiary level comparisons.
    
    Possible values are: 
@@ -234,7 +234,7 @@ description: |
    and to perform normalization. Generally, majority of text does not
    require this normalization processing.
 
-   If ``true``, check if fully normalized and perform normaliztion to
+   If ``true``, check if fully normalized and perform normalization to
    compare text.
 
    If ``false``, does not check.