Address PR comments

Author: DavidBiesack

README.md

@@ -440,7 +440,7 @@ format: binary
 
 ## Unsupported down conversions
 
-Curretnly, the tool does not support the following situations.
+Currently, the tool does not support the following situations.
 Contributions welcome!
 
 * `openapi-down-convert` does not convert `exclusiveMinimum` and `exclusiveMaximum`

src/converter.ts

@@ -46,7 +46,7 @@ export interface ConverterOptions {
    */
   scopeDescriptionFile?: string;
   /** Earlier versions of the tool converted $comment to x-comment
-   * in JSON Schemas. The tool now deleted $comment values.
+   * in JSON Schemas. The tool now deletes $comment values by default.
    * Use this option to preserve the conversion and not delete
    * comments.
    */