* docs(README.md): add reminder to add payment details to OpenAI API key

* docs(api.ts): update error message to remind user to add payment details to OpenAI API key
* refactor(cli.ts): remove unused import
* refactor(config.ts): update error message to use outro instead of throwing an error and exit the process

* chore(generateCommitMessageFromGitDiff.ts): add console.log for error debugging

src/commands/config.ts

@@ -24,7 +24,10 @@ const validateConfig = (
   validationMessage: string
 ) => {
   if (!condition) {
-    throw new Error(`Unsupported config key ${key}: ${validationMessage}`);
+    outro(
+      `${chalk.red('✖')} Unsupported config key ${key}: ${validationMessage}`
+    );
+    process.exit(1);
   }
 };