chore: remove custom mark and node examples

.github/workflows/ci-demos.yml

@@ -52,8 +52,6 @@ jobs:
       matrix:
         demo:
           - cdn
-          - custom-mark
-          - custom-node
           - docx-from-html
           - docxtemplater
           - fields

apps/docs/AGENTS.md

@@ -71,7 +71,7 @@ Example:
 | DOCX fidelity | "Built on OOXML. Real pagination, section breaks, headers/footers. Not rich text with export bolted on." | "Users see documents exactly as they look in Word. No formatting loss, no complaints, no re-work." |
 | Collaboration | "Yjs-based CRDT. Add real-time editing in ~10 lines. Conflicts resolve automatically." | "Teams edit documents together in real time. Built-in conflict resolution means no lost work." |
 | Open source | "AGPLv3. Read the code, fork it, contribute. Commercial license if you need proprietary." | "Open-source foundation means no vendor lock-in. Inspect the code. Switch away anytime." |
-| Extensible | "60+ extensions built-in. Write your own with the plugin API. Full ProseMirror access." | "Adapts to your workflow, not the other way around. Custom extensions, branding, and integrations." |
+| Extensible | "60+ extensions built-in. Configure formatting, collaboration, comments, and workflows without rebuilding the editor." | "Adapts to your workflow, not the other way around. Branding, integrations, and document workflows." |
 | AI | "Bring your own LLM. AI actions with tool use — find, replace, highlight, insert. Streaming built in." | "AI-assisted document workflows with your choice of provider. Your data, your model, your infrastructure." |
 
 ### Quick reference

apps/docs/core/superdoc/configuration.mdx

@@ -414,7 +414,7 @@ new SuperDoc({
 ## Advanced options
 
 <ParamField path="editorExtensions" type="Extension[]" default="[]">
-  Additional SuperDoc extensions
+  Additional editor extensions to load
 </ParamField>
 
 <ParamField path="handleImageUpload" type="function">

apps/docs/core/superdoc/methods.mdx

@@ -977,7 +977,7 @@ const schema = await getSchemaIntrospection({ mode: 'docx' });
       Existing Editor instance to introspect. If provided, uses this instead of creating a temporary editor.
     </ParamField>
     <ParamField path="extensions" type="Array">
-      Custom extensions to use when building the schema.
+      Specific extensions to use when building the schema.
     </ParamField>
     <ParamField path="mode" type="string" default="'docx'">
       Editor mode: `'docx'`, `'html'`, or `'text'`

apps/docs/extensions/format-commands.mdx

@@ -132,7 +132,7 @@ const superdoc = new SuperDoc({
 
 ### `toggleMarkCascade`
 
-Toggle a mark type with cascade behavior, handling nested marks and negation attributes. Used internally by formatting extensions (bold, italic, etc.) but can be called directly for custom mark toggling.
+Toggle a mark type with cascade behavior, handling nested marks and negation attributes. Used internally by formatting extensions (bold, italic, etc.) but can also be called directly in advanced formatting flows.
 
 **Example:**
 

apps/docs/extensions/overview.mdx

@@ -59,9 +59,6 @@ Complex functionality:
 - **[Table](/extensions/table)** - Complex tables
 - **[Search](/extensions/search)** - Find and replace
 
-### Custom extensions
-**[Build your own →](/extensions/creating-extensions)**
-
 ## How extensions work
 
 1. **Registration** - Extensions load with the editor

apps/docs/guides/migration/breaking-changes-v1.mdx

@@ -207,7 +207,7 @@ Using DOCX as the source of truth is the best way to perform this migration. The
 1. Upgrade to `superdoc@^1.0.0`  
 2. Update TypeScript imports/types if you rely on editor typings  
 3. Remove legacy pagination/list/header-footer CSS overrides you no longer need  
-4. If you have custom extensions, verify they work correctly  
+4. If you rely on low-level editor integrations, verify they still work correctly  
 5. If you have customized any library styles, verify they work correctly
 
 ---

apps/docs/snippets/extensions/list-item.mdx

@@ -64,8 +64,8 @@ import { SuperDocEditor } from '/snippets/components/superdoc-editor.jsx'
 
 ## Key features
 
-### Custom node view
-The list item uses a custom node view that provides:
+### Dedicated node view
+The list item uses a dedicated node view that provides:
 - **Visual numbering/bullets** - Rendered separately from content
 - **Smart indentation** - Calculates proper spacing based on Word styles
 - **Font inheritance** - Respects document and paragraph styles
@@ -128,4 +128,4 @@ Word supports complex numbering like:
 - **Instructions** - Step-by-step procedures
 - **Outlines** - Multi-level document planning
 - **Legal Documents** - Complex numbered sections
-- **Word Import/Export** - Perfect numbering preservation
+- **Word Import/Export** - Perfect numbering preservation