[auto] regenerate table of contents

README.md

@@ -332,7 +332,7 @@
 | 304 | [List down some of the features of ES6](#list-down-some-of-the-features-of-es6) |
 | 305 | [What is ES6](#what-is-es6) |
 | 306 | [Can I redeclare let and const variables](#can-i-redeclare-let-and-const-variables) |
-| 307 | [Does the const variable make the value immutable](#Does-the-const-variable-make-the-value-immutable) |
+| 307 | [Does the `const` variable make the value immutable](#does-the-const-variable-make-the-value-immutable) |
 | 308 | [What are default parameters](#what-are-default-parameters) |
 | 309 | [What are template literals](#what-are-template-literals) |
 | 310 | [How do you write multi-line strings in template literals](#how-do-you-write-multi-line-strings-in-template-literals) |