Fix readme

Author: alekswebnet

README.md

@@ -8,38 +8,34 @@ A web component for viewing pdf files in the browser. The package is based on [P
 ⚠️ `pdfjs-viewer-element` uses PDF.js [prebuilt](http://mozilla.github.io/pdf.js/getting_started/), that includes the generic build of PDF.js and the viewer. To use the package you should download and **place the prebuilt** files to some directory of your project. Then specify the path to this directory with `viewer-path` property (`/pdfjs` by default).
 
 ## Install
-```
-npm install --save pdfjs-viewer-element
-```
 
-```
+Using module bundlers:
+
+```bash
+# With npm
+npm install pdfjs-viewer-element
+# With yarn
 yarn add pdfjs-viewer-element
 ```
 
-or
-
+```javascript
+import 'pdfjs-viewer-element'
 ```
+
+Using browser:
+
+```html
 <script type="module" src="https://cdn.skypack.dev/pdfjs-viewer-element"></script>
 ```
 
 ## Usage
 
-Place **PDF.js prebuilt** files to some directory of your project (`pdfjs` used as the standard name). See demo [example](https://github.com/alekswebnet/pdfjs-viewer-element/tree/master/public). You may call the directory as you want, but then you should specify the `viewer-path` property.
-
-```javascript
-import 'pdfjs-viewer-element'
-```
-
-```javascript
+```html
 <pdfjs-viewer-element src="/file.pdf" viewer-path="/path-to-viewer"></pdfjs-viewer-element>
 ```
 
 ## Properties
 
-`src` - path to pdf file.
-
-`viewer-path` - path to prebuilt directory (`/pdfjs` by default).
-
 `src` - Path to pdf file
 
 `viewer-path` - Path to PDF.js prebuilt
@@ -56,6 +52,8 @@ import 'pdfjs-viewer-element'
 
 `pagemode` - Page mode
 
+For more clarity, see the [demo playground](https://alekswebnet.github.io/pdfjs-viewer-element/api).
+
 ## License
 For this package - [MIT](http://opensource.org/licenses/MIT).
 

types/debounce.d.ts

@@ -0,0 +1 @@
+export declare const debounce: (fn: Function, ms?: number) => (this: any, ...args: any[]) => void;

types/pdfjs-viewer-element.d.ts

@@ -1,13 +1,25 @@
 export declare class PdfjsViewerElement extends HTMLElement {
-  constructor();
-  static get observedAttributes(): string[];
-  connectedCallback(): void;
-  attributeChangedCallback(name: string): void;
-  updateIframe(): void;
+    constructor();
+    private iframe;
+    static get observedAttributes(): string[];
+    connectedCallback(): void;
+    attributeChangedCallback(): void;
+    private onAttrsChanged;
+    private setProps;
+    private setEventListeners;
+    private getFileSrc;
 }
 declare global {
-  interface Window {
-    PdfjsViewerElement: typeof PdfjsViewerElement;
-  }
+    interface Window {
+        PdfjsViewerElement: typeof PdfjsViewerElement;
+    }
+}
+export interface PdfjsViewerElementIframeWindow extends Window {
+    PDFViewerApplicationOptions: {
+        set: (name: string, value: string | boolean) => void;
+    };
+}
+export interface PdfjsViewerElementIframe extends HTMLIFrameElement {
+    contentWindow: PdfjsViewerElementIframeWindow;
 }
 export default PdfjsViewerElement;