Well-established note category/title combinations

- addresses feedback of #725
- use title case

csaf_2.1/prose/edit/src/schema-elements-02-props-01-document.md

@@ -234,7 +234,7 @@ The following combinations of `category` and `title` have a special meaning and
 
 | `category` | `title` | content of `text` |
 |---------------|---------------|-------------------|
-| `description` | Product description | Contains a description of a product given in the `product_tree` in regards to field of application and core functionality. |
+| `description` | Product Description | Contains a description of a product given in the `product_tree` in regards to field of application and core functionality. |
 | `general` | General Security Recommendations | Contains general advise and security recommendations that are related, generic and might be independently applicable of the content of the CSAF document. |
 | `summary` | Summary | Contains a short summary of the content of the advisory. |
 

csaf_2.1/prose/edit/src/schema-elements-02-props-03-vulnerabilities.md

@@ -374,9 +374,9 @@ The following combinations of `category` and `title` have a special meaning and
 
 | `category` | `title` | content of `text` |
 |---------------|---------------|-------------------|
-| `description` | CVE description | Contains the official and unchanged CVE description for this specific vulnerability. |
+| `description` | CVE Description | Contains the official and unchanged CVE description for this specific vulnerability. |
 | `description` | Preconditions | Contains a description of the preconditions that have to be fulfilled to be able to exploit the vulnerability, e.g. user account or physical access. |
-| `summary` | Vulnerability summary | Contains a summary of the vulnerability which is not the official CVE description. |
+| `summary` | Vulnerability Summary | Contains a summary of the vulnerability which is not the official CVE description. |
 
 #### Vulnerabilities Property - Product Status