diff --git a/README.md b/README.md
index c084194c..5e2e825b 100644
--- a/README.md
+++ b/README.md
@@ -45,26 +45,8 @@ This npm module is bundled and distributed in the [monaco-editor](https://www.np
 * initial setup with `npm install .`
 * compile with `npm run watch`
 * test with `npm run test`
- * There is a problem with nls.js while running under the test environment. If you get `Uncaught Error: Evaluating node_modules/monaco-editor-core/dev/vs/nls.js as module "vs/nls" failed with error: TypeError: Cannot read property 'Plugin' of undefined` you must edit for now `$/node_modules/monaco-editor-core/dev/vs/nls.js` and around line 27 use `var global = _nlsPluginGlobal || {};`. A fix will come soon.
 * bundle with `npm run prepublish`
 
-## Dev: Running monaco-languages from source
-
-* clone https://github.com/Microsoft/monaco-languages in `$/src/monaco-languages`
-* run `$/src/monaco-languages> npm run watch`
-* clone https://github.com/Microsoft/monaco-editor in `$/src/monaco-editor`
-* run `$/src/monaco-editor> npm run simpleserver`
-* edit `$/src/monaco-editor/test/index.html` and set `RUN_PLUGINS_FROM_SOURCE['monaco-languages'] = true;`
-* open http://localhost:8080/monaco-editor/test/
-
-### [Optional] Running monaco-editor-core from source
-
-* this is only needed when you want to make changes also in `monaco-editor-core`.
-* clone https://github.com/Microsoft/vscode in `$/src/vscode/`
-* run `gulp watch`
-* edit `$/src/monaco-editor/test/index.html` and set `var RUN_EDITOR_FROM_SOURCE = true;`
-* open http://localhost:8080/monaco-editor/test/
-
 ## Dev: Adding a new language
 
 * create `$/src/myLang.ts`
@@ -72,22 +54,22 @@ This npm module is bundled and distributed in the [monaco-editor](https://www.np
 * update tsconfig.json with `$> node_modules/.bin/tscg .`
 * restart compilation with `$> npm run watch`
 * edit `$/src/monaco.contribution.ts` and register your new language:
-```js
-registerLanguage({
-	id: 'sql',
-	extensions: [ '.sql' ],
-	aliases: [ 'SQL' ],
-	module: './sql'
-});
-```
+  ```js
+  registerLanguage({
+  	id: 'sql',
+  	extensions: [ '.sql' ],
+  	aliases: [ 'SQL' ],
+  	module: './sql'
+  });
+  ```
 * edit `$/test/all.js` and load your new language while testing
-```js
-'out/test/sql.test',
-```
+  ```js
+  'out/test/sql.test',
+  ```
 * edit `$/gulpfile.js` and ship your new language
-```js
-bundleOne('src/sql'),
-```
+  ```js
+  bundleOne('src/sql'),
+  ```
 
 ## Code of Conduct