📖 docs: Add information for `enableImageLazyLoading` param

exampleSite/config/_default/params.toml

@@ -11,6 +11,7 @@ autoSwitchAppearance = true
 
 enableSearch = true
 enableCodeCopy = true
+enableImageLazyLoading = true
 
 # robots = ""
 fingerprintAlgorithm = "sha256"

exampleSite/content/docs/configuration/index.md

@@ -129,6 +129,7 @@ Many of the article defaults here can be overridden on a per article basis by sp
 |`autoSwitchAppearance`|`true`|Whether the theme appearance automatically switches based upon the visitor's operating system preference. Set to `false` to force the site to always use the `defaultAppearance`.|
 |`enableSearch`|`false`|Whether site search is enabled. Set to `true` to enable search functionality. Note that the search feature depends on the `outputs.home` setting in the [site configuration](#site-configuration) being set correctly.|
 |`enableCodeCopy`|`false`|Whether copy-to-clipboard buttons are enabled for `<code>` blocks. The `highlight.noClasses` parameter must be set to `false` for code copy to function correctly. Read more about [other configuration files](#other-configuration-files) below.|
+|`enableImageLazyLoading`|`true`|Whether image should be lazy loading.|
 |`robots`|_Not set_|String that indicates how robots should handle your site. If set, it will be output in the page head. Refer to [Google's docs](https://developers.google.com/search/docs/advanced/robots/robots_meta_tag#directives) for valid values.|
 |`fingerprintAlgorithm`|`"sha256"`|String that indicates which hashing algorithm is used when fingerprinting assets. Valid options include `md5`, `sha256`, `sha384` and `sha512`.|
 |`header.layout`|`"basic"`|The layout of the page header and menu. Valid values are `basic`, `hamburger`, `hybrid` or `custom`. When set to `custom`, you must provide your own layout by creating a `/layouts/partials/header/custom.html` file.|