Fix anchor jumping in README.md (#1521)

Author: LoginovIlya

README.md

@@ -33,12 +33,11 @@
   * [Faster Builds](#faster-builds)
   * [Yarn Plug’n’Play](#yarn-plugnplay)
   * [Babel](#babel)
-  * [Parallelising Builds](#parallelising-builds)
   * [Compatibility](#compatibility)
   * [Configuration](#configuration)
     + [`devtool` / sourcemaps](#devtool--sourcemaps)
   * [Code Splitting and Loading Other Resources](#code-splitting-and-loading-other-resources)
-  * [Declarations (.d.ts)](#declarations-dts)
+  * [Declarations (.d.ts)](#declaration-files-dts)
   * [Failing the build on TypeScript compilation error](#failing-the-build-on-typescript-compilation-error)
   * [`baseUrl` / `paths` module resolution](#baseurl--paths-module-resolution)
   * [Options](#options)