Improve readme

Author: alekswebnet

README.md

@@ -1,8 +1,8 @@
 # pdfjs-viewer-element
 
-A web component for viewing pdf files in the browser. The package is based on [PDF.js default viewer](https://mozilla.github.io/pdf.js/web/viewer.html) build and works with any framework.
+A custom element, based on [PDF.js default viewer](https://mozilla.github.io/pdf.js/web/viewer.html). Works in all [major browsers](https://caniuse.com/custom-elementsv1) and with most [JS frameworks](https://custom-elements-everywhere.com/). See [examples](https://alekswebnet.github.io/pdfjs-viewer-element/#demo) of usage in the different frameworks.
 
-⚠️ `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).
+⚠️ `pdfjs-viewer-element` requires 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).
 
 ## Status
 
@@ -49,9 +49,9 @@ Using browser:
 
 `src` - Path to pdf file
 
-`viewer-path` - Path to PDF.js prebuilt
+`viewer-path` - Path to PDF.js [prebuilt](http://mozilla.github.io/pdf.js/getting_started/)
 
-`locale` - Language of the interface, see [all l10n files](https://github.com/mozilla/pdf.js/tree/master/l10n)
+`locale` -  Specifies which language to use in the viewer UI. For a list of the available locales, see [all l10n files](https://github.com/mozilla/pdf.js/tree/master/l10n)
 
 `text-layer` - Text layer, that is used for text selection
 
@@ -68,6 +68,4 @@ Using browser:
 For more clarity, see the [Api docs page](https://alekswebnet.github.io/pdfjs-viewer-element/#api).
 
 ## License
-For this package - [MIT](http://opensource.org/licenses/MIT).
-
-For the `pdf.js` library - https://github.com/mozilla/pdf.js/blob/master/LICENSE.
+[MIT](http://opensource.org/licenses/MIT).