docs(readme): add detail on base tsconfig option

README.md

@@ -45,12 +45,15 @@ Home page source at `./src/static/index.html`.
 development and AOT builds use `platformBrowserDynamic().bootstrapModule()`
 
 * Altough no actual *ngfactory* is created on disk, `tsconfig-aot,json` still 
-has `angularCompilerOptions.genDir` options, and that is set to the same path 
+has `angularCompilerOptions.genDir` option, and that is set to the same path 
 where all sources are stored (`./src`)
 
-* Both *tsconfig* files simply include all TypeScript files under sources 
+* Both *tsconfig** files simply include all TypeScript files under sources 
 directory (`src/**/*.ts`)
 
+* Both *tsconfig** files explicitly set `baseUrl` option to the empty string
+(`""`)
+
 * `ngToolsWebpack.AotPlugin.entryModule` option is set as a relative path, 
 without trailing `./`, without `.ts` extension, with module class name as a suffix