fix(docs): cleanup

docs/site/Behind-the-scene.md

@@ -8,7 +8,15 @@ permalink: /doc/en/lb4/Behind-the-scene.html
 
 Here are the infrastructure that get all the artifacts working together:
 
-- [Context](Context.md)
-- [Binding](Binding.md)
-- [Dependency Injection](Dependency-injection.md)
-- [Component](Component.md)
+- [Context](Context.md): An abstraction of states and dependencies in your
+  application that LoopBack uses to manage everything. It’s a global registry
+  for everything in your app (configurations, state, dependencies, classes and
+  so on).
+- [Binding](Binding.md): An abstraction of items managed by a context. Each
+  binding has a unique key within the context and a value provider to resolve
+  the key to a value.
+- [Dependency Injection](Dependency-injection.md): The technique used to
+  separate the construction of dependencies of a class or function from its
+  behavior to keep the code loosely coupled.
+- [Component](Components.md): A package that bundles one or more LoopBack
+  extensions.

docs/site/Concepts.md

@@ -21,19 +21,6 @@ responsibilities for typical API and/or Microservice applications.
   typically listens on a specific endpoint (protocol/host/port), handles
   incoming requests, and then returns appropriate responses.
 
-- [**Context**](Context.md): An abstraction of states and dependencies in your
-  application that LoopBack uses to manage everything. It's a global registry
-  for everything in your app (configurations, state, dependencies, classes and
-  so on).
-
-- [**Binding**](Binding.md): An abstraction of items managed by a context. Each
-  binding has a unique key within the context and a value provider to resolve
-  the key to a value.
-
-- [**Dependency Injection**](Dependency-injection.md): The technique used to
-  separate the construction of dependencies of a class or function from its
-  behavior to keep the code loosely coupled.
-
 - [**Controller**](Controllers.md): A class that implements operations defined
   by the application’s REST API. It implements an application’s business logic
   and acts as a bridge between the HTTP/REST API and domain/database models. A
@@ -68,6 +55,3 @@ responsibilities for typical API and/or Microservice applications.
 
 - [**Decorator**](Decorators.md): The pattern used to annotate or modify your
   class declarations and their members with metadata.
-
-- [**Component**](Components.md): A package that bundles one or more LoopBack
-  extensions.

docs/site/sidebars/lb4_sidebar.yml

@@ -201,8 +201,8 @@ children:
           url: Reserved-binding-keys.html
           output: 'web, pdf'
 
-    - title: 'Component'
-      url: Component.html
+    - title: 'Components'
+      url: Components.html
       output: 'web, pdf'
 
 - title: 'Booting an Application'