update ts docs

packages/core/src/command.ts

@@ -11,14 +11,37 @@ export interface CommandProperties {
 }
 
 /**
- * Commands
+ * Issues a command to the GitHub Actions runner
+ *
+ * @param command - The command name to issue
+ * @param properties - Additional properties for the command (key-value pairs)
+ * @param message - The message to include with the command
+ * @remarks
+ * This function outputs a specially formatted string to stdout that the Actions
+ * runner interprets as a command. These commands can control workflow behavior,
+ * set outputs, create annotations, mask values, and more.
  *
  * Command Format:
  *   ::name key=value,key=value::message
  *
- * Examples:
- *   ::warning::This is the message
- *   ::set-env name=MY_VAR::some value
+ * @example
+ * ```typescript
+ * // Issue a warning annotation
+ * issueCommand('warning', {}, 'This is a warning message');
+ * // Output: ::warning::This is a warning message
+ *
+ * // Set an environment variable
+ * issueCommand('set-env', { name: 'MY_VAR' }, 'some value');
+ * // Output: ::set-env name=MY_VAR::some value
+ *
+ * // Add a secret mask
+ * issueCommand('add-mask', {}, 'secretValue123');
+ * // Output: ::add-mask::secretValue123
+ * ```
+ *
+ * @internal
+ * This is an internal utility function that powers the public API functions
+ * such as setSecret, warning, error, and exportVariable.
  */
 export function issueCommand(
   command: string,