Improve docs readability (#1592)

* Improve docs readability

* Update lazy-mode.md

docs/pages/docs/configuration/lazy-mode.md

@@ -2,9 +2,9 @@
 
 In lazy mode, Cosmos dynamically imports fixture and decorator modules only when they are needed, specifically when a fixture is selected in the Cosmos UI. This approach results in code splitting and enhances the isolation of the selected fixture. In this mode, fixture names of [Multi-Fixtures](/docs/fixtures/fixture-modules.md#multi-fixtures) are only revealed upon selection.
 
-To enable lazy mode:
+## Enabling Lazy Mode
+
+Lazy mode is disabled by default. There are two ways to enable lazy mode:
 
 - Set the `lazy` option to `true` in the Cosmos config.
 - Use the `--lazy` CLI argument when running a Cosmos command.
-
-Lazy mode is disabled by default.

docs/pages/docs/fixtures/ui-controls.mdx

@@ -33,8 +33,6 @@ The `useValue` hook can be used to control any type of serializable data, like s
 import { useSelect } from 'react-cosmos/client';
 
 export default () => {
-  // useSelect also returns a setter as the second value in the return tuple,
-  // like the useState hook, in case you want to change the value programatically.
   const [buttonType] = useSelect('buttonType', {
     options: ['primary', 'secondary', 'danger'],
   });
@@ -43,6 +41,8 @@ export default () => {
 };
 ```
 
+`useSelect` also returns a setter as the second value in the return tuple, like the `useState` hook, in case you want to change the value programatically.
+
 <Callout type="info">
   `useValue` and `useSelect` (and Cosmos in general) work great with TypeScript.
 </Callout>