diff --git a/website/docs/guides/docs/sidebar/index.mdx b/website/docs/guides/docs/sidebar/index.mdx
index 9b74bcac588e..0caba80169c9 100644
--- a/website/docs/guides/docs/sidebar/index.mdx
+++ b/website/docs/guides/docs/sidebar/index.mdx
@@ -156,7 +156,7 @@ module.exports = {
 
 ## Passing custom props {#passing-custom-props}
 
-To pass in custom props to a swizzled sidebar item, add the optional `customProps` object to any of the items:
+To pass in custom props to a sidebar item, add the optional `customProps` object to any of the items. This is useful to apply site customizations by swizzling React components rendering sidebar items.
 
 ```js
 {
diff --git a/website/versioned_docs/version-2.0.1/guides/docs/sidebar/index.mdx b/website/versioned_docs/version-2.0.1/guides/docs/sidebar/index.mdx
index 21f414a88e70..e9624728b491 100644
--- a/website/versioned_docs/version-2.0.1/guides/docs/sidebar/index.mdx
+++ b/website/versioned_docs/version-2.0.1/guides/docs/sidebar/index.mdx
@@ -157,7 +157,7 @@ module.exports = {
 
 ## Passing custom props {#passing-custom-props}
 
-To pass in custom props to a swizzled sidebar item, add the optional `customProps` object to any of the items:
+To pass in custom props to a sidebar item, add the optional `customProps` object to any of the items. This is useful to apply site customizations by swizzling React components rendering sidebar items.
 
 ```js
 {
diff --git a/website/versioned_docs/version-2.1.0/guides/docs/sidebar/index.mdx b/website/versioned_docs/version-2.1.0/guides/docs/sidebar/index.mdx
index 9b74bcac588e..0caba80169c9 100644
--- a/website/versioned_docs/version-2.1.0/guides/docs/sidebar/index.mdx
+++ b/website/versioned_docs/version-2.1.0/guides/docs/sidebar/index.mdx
@@ -156,7 +156,7 @@ module.exports = {
 
 ## Passing custom props {#passing-custom-props}
 
-To pass in custom props to a swizzled sidebar item, add the optional `customProps` object to any of the items:
+To pass in custom props to a sidebar item, add the optional `customProps` object to any of the items. This is useful to apply site customizations by swizzling React components rendering sidebar items.
 
 ```js
 {
diff --git a/website/versioned_docs/version-2.2.0/guides/docs/sidebar/index.mdx b/website/versioned_docs/version-2.2.0/guides/docs/sidebar/index.mdx
index 9b74bcac588e..0caba80169c9 100644
--- a/website/versioned_docs/version-2.2.0/guides/docs/sidebar/index.mdx
+++ b/website/versioned_docs/version-2.2.0/guides/docs/sidebar/index.mdx
@@ -156,7 +156,7 @@ module.exports = {
 
 ## Passing custom props {#passing-custom-props}
 
-To pass in custom props to a swizzled sidebar item, add the optional `customProps` object to any of the items:
+To pass in custom props to a sidebar item, add the optional `customProps` object to any of the items. This is useful to apply site customizations by swizzling React components rendering sidebar items.
 
 ```js
 {
diff --git a/website/versioned_docs/version-2.3.1/guides/docs/sidebar/index.mdx b/website/versioned_docs/version-2.3.1/guides/docs/sidebar/index.mdx
index 9b74bcac588e..0caba80169c9 100644
--- a/website/versioned_docs/version-2.3.1/guides/docs/sidebar/index.mdx
+++ b/website/versioned_docs/version-2.3.1/guides/docs/sidebar/index.mdx
@@ -156,7 +156,7 @@ module.exports = {
 
 ## Passing custom props {#passing-custom-props}
 
-To pass in custom props to a swizzled sidebar item, add the optional `customProps` object to any of the items:
+To pass in custom props to a sidebar item, add the optional `customProps` object to any of the items. This is useful to apply site customizations by swizzling React components rendering sidebar items.
 
 ```js
 {
diff --git a/website/versioned_docs/version-2.4.0/guides/docs/sidebar/index.mdx b/website/versioned_docs/version-2.4.0/guides/docs/sidebar/index.mdx
index 9b74bcac588e..0caba80169c9 100644
--- a/website/versioned_docs/version-2.4.0/guides/docs/sidebar/index.mdx
+++ b/website/versioned_docs/version-2.4.0/guides/docs/sidebar/index.mdx
@@ -156,7 +156,7 @@ module.exports = {
 
 ## Passing custom props {#passing-custom-props}
 
-To pass in custom props to a swizzled sidebar item, add the optional `customProps` object to any of the items:
+To pass in custom props to a sidebar item, add the optional `customProps` object to any of the items. This is useful to apply site customizations by swizzling React components rendering sidebar items.
 
 ```js
 {