Corrected the case issue of 'JavaScript' throughout the docs (#2401)

* corrected JavaScript spelling

docs/vnodes.md

@@ -11,15 +11,15 @@
 
 ### What is virtual DOM
 
-A virtual DOM tree is a Javascript data structure that describes a DOM tree. It consists of nested virtual DOM nodes, also known as *vnodes*.
+A virtual DOM tree is a JavaScript data structure that describes a DOM tree. It consists of nested virtual DOM nodes, also known as *vnodes*.
 
 The first time a virtual DOM tree is rendered, it is used as a blueprint to create a DOM tree that matches its structure.
 
 Typically, virtual DOM trees are then recreated every render cycle, which normally occurs in response to event handlers or to data changes. Mithril *diffs* a vnode tree against its previous version and only modifies DOM elements in spots where there are changes.
 
-It may seem wasteful to recreate vnodes so frequently, but as it turns out, modern Javascript engines can create hundreds of thousands of objects in less than a millisecond. On the other hand, modifying the DOM is several orders of magnitude more expensive than creating vnodes.
+It may seem wasteful to recreate vnodes so frequently, but as it turns out, modern JavaScript engines can create hundreds of thousands of objects in less than a millisecond. On the other hand, modifying the DOM is several orders of magnitude more expensive than creating vnodes.
 
-For that reason, Mithril uses a sophisticated and highly optimized virtual DOM diffing algorithm to minimize the amount of DOM updates. Mithril *also* generates carefully crafted vnode data structures that are compiled by Javascript engines for near-native data structure access performance. In addition, Mithril aggressively optimizes the function that creates vnodes as well.
+For that reason, Mithril uses a sophisticated and highly optimized virtual DOM diffing algorithm to minimize the amount of DOM updates. Mithril *also* generates carefully crafted vnode data structures that are compiled by JavaScript engines for near-native data structure access performance. In addition, Mithril aggressively optimizes the function that creates vnodes as well.
 
 The reason Mithril goes to such great lengths to support a rendering model that recreates the entire virtual DOM tree on every render is to provide a declarative [immediate mode](https://en.wikipedia.org/wiki/Immediate_mode_(computer_graphics%29) API, a style of rendering that makes it drastically easier to manage UI complexity.
 
@@ -33,7 +33,7 @@ Virtual DOM goes one step further than HTML by allowing you to write *dynamic* D
 
 ### Basics
 
-Virtual DOM nodes, or *vnodes*, are javascript objects that represent DOM elements (or parts of the DOM). Mithril's virtual DOM engine consumes a tree of vnodes to produce a DOM tree.
+Virtual DOM nodes, or *vnodes*, are JavaScript objects that represent DOM elements (or parts of the DOM). Mithril's virtual DOM engine consumes a tree of vnodes to produce a DOM tree.
 
 Vnodes are created via the [`m()`](hyperscript.md) hyperscript utility:
 
@@ -62,7 +62,7 @@ m(ExampleComponent, {style: "color:red;"}, "world")
 
 ### Structure
 
-Virtual DOM nodes, or *vnodes*, are Javascript objects that represent an element (or parts of the DOM) and have the following properties:
+Virtual DOM nodes, or *vnodes*, are JavaScript objects that represent an element (or parts of the DOM) and have the following properties:
 
 Property   | Type                             | Description
 ---------- | -------------------------------- | ---
@@ -91,7 +91,7 @@ Element      | `{tag: "div"}`                 | Represents a DOM element.
 Fragment     | `{tag: "[", children: []}`     | Represents a list of DOM elements whose parent DOM element may also contain other elements that are not in the fragment. When using the [`m()`](hyperscript.md) helper function, fragment vnodes can only be created by nesting arrays into the `children` parameter of `m()`. `m("[")` does not create a valid vnode.
 Text         | `{tag: "#", children: ""}`     | Represents a DOM text node.
 Trusted HTML | `{tag: "<", children: "<br>"}` | Represents a list of DOM elements from an HTML string.
-Component    | `{tag: ExampleComponent}`      | If `tag` is a Javascript object with a `view` method, the vnode represents the DOM generated by rendering the component.
+Component    | `{tag: ExampleComponent}`      | If `tag` is a JavaScript object with a `view` method, the vnode represents the DOM generated by rendering the component.
 
 Everything in a virtual DOM tree is a vnode, including text. The `m()` utility automatically normalizes its `children` argument and turns strings into text vnodes and nested arrays into fragment vnodes.
 
@@ -101,9 +101,9 @@ Only element tag names and components can be the first argument of the `m()` fun
 
 ### Monomorphic class
 
-The `mithril/render/vnode` module is used by Mithril to generate all vnodes. This ensures modern Javascript engines can optimize virtual dom diffing by always compiling vnodes to the same hidden class.
+The `mithril/render/vnode` module is used by Mithril to generate all vnodes. This ensures modern JavaScript engines can optimize virtual dom diffing by always compiling vnodes to the same hidden class.
 
-When creating libraries that emit vnodes, you should use this module instead of writing naked Javascript objects in order to ensure a high level of rendering performance.
+When creating libraries that emit vnodes, you should use this module instead of writing naked JavaScript objects in order to ensure a high level of rendering performance.
 
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