fix: add language to code block

Author: prithvisingh01-tech

src/content/configuration/output.mdx

@@ -1604,13 +1604,19 @@ export default {
     },
   },
 };
-In this case, the default export of your entry module is assigned to the library name:
+```
+
+In this case, the entry module's `default export` is assigned to the library name.
 
+```js
 const MyLibrary = _entry_return_.default;
-Example: exporting a nested property
+```
+
+### Example: exporting a nested property
 
 You can also pass an array to define a path to a specific export:
 
+```js
 export default {
   output: {
     library: {
@@ -1620,7 +1626,12 @@ export default {
     },
   },
 };
+```
+
+```js
 const MyLibrary = _entry_return_.default.subModule;
+```
+
 ### output.library.auxiliaryComment
 
 Add a comment in the UMD wrapper.

src/content/contribute/writers-guide.mdx

@@ -155,7 +155,6 @@ Please do not assume things are simple. Avoid words like 'just', 'simply'.
 
 ### Configuration defaults and types
 
-
 Webpack configuration defaults can vary depending on the selected mode. The two used are `development` and `production`, and each applies different default optimizations.
 
 #### Development mode defaults
@@ -178,8 +177,9 @@ Webpack configuration defaults can vary depending on the selected mode. The two
 module.exports = {
   mode: "development",
 };
+```
 
-Always provide types and defaults to all of the documentation options in order to keep the documentation accessible and well-written. We are adding types and defaults after entitling the documented option:
+Always provide types and defaults for all documented options to keep the documentation clear and accessible. Types and defaults should be added after introducing the option.
 
 **configuration.example.option**
 
@@ -247,3 +247,7 @@ An example can be found on the [`options` section of the EvalSourceMapDevToolPlu
 ### Adding links
 
 Please use relative URLs (such as `/concepts/mode/`) to link our own content instead of absolute URLs (such as `https://webpack.js.org/concepts/mode/`).
+
+```js
+
+```