Merge branch 'develop' into replace-live-server

# Conflicts:
#	package-lock.json

Author: jhildenbiddle

docs/configuration.md

@@ -288,6 +288,54 @@ window.$docsify = {
 };
 ```
 
+## keyBindings
+
+- Type: `Boolean|Object`
+- Default: `Object`
+  - <kbd>\\</kbd> Toggle the sidebar menu
+  - <kbd>/</kbd> Focus on [search](plugins#full-text-search) field. Also supports <kbd>alt</kbd>&nbsp;/&nbsp;<kbd>ctrl</kbd>&nbsp;+&nbsp;<kbd>k</kbd>.
+
+Binds key combination(s) to a custom callback function.
+
+Key `bindings` are defined as case insensitive string values separated by `+`. Modifier key values include `alt`, `ctrl`, `meta`, and `shift`. Non-modifier key values should match the keyboard event's [key](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/key) or [code](https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/code) value.
+
+The `callback` function receive a [keydown event](https://developer.mozilla.org/en-US/docs/Web/API/Element/keydown_event) as an argument.
+
+!> Let site visitors know your custom key bindings are available! If a binding is associated with a DOM element, consider inserting a `<kbd>` element as a visual cue (e.g., <kbd>alt</kbd> + <kbd>a</kbd>) or adding [title](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/title) and [aria-keyshortcuts](https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Attributes/aria-keyshortcuts) attributes for hover/focus hints.
+
+```js
+window.$docsify = {
+  keyBindings: {
+    // Custom key binding
+    myCustomBinding: {
+      bindings: ['alt+a', 'shift+a'],
+      callback(event) {
+        alert('Hello, World!');
+      },
+    },
+  },
+};
+```
+
+Key bindings can be disabled entirely or individually by setting the binding configuration to `false`.
+
+```js
+window.$docsify = {
+  // Disable all key bindings
+  keyBindings: false,
+};
+```
+
+```js
+window.$docsify = {
+  keyBindings: {
+    // Disable individual key bindings
+    focusSearch: false,
+    toggleSidebar: false,
+  },
+};
+```
+
 ## loadNavbar
 
 - Type: `Boolean|String`