Update readme

README.md

@@ -24,3 +24,19 @@ Potreban je Chrome ili Chrome based preglednik.
 - deinstalirati Zebra driver ako je instaliran
 - instalirati [Zadig](https://zadig.akeo.ie) utility
 - pratiti [upute za instalaciju](https://stackoverflow.com/a/72469190/168187) drivera preko Zadiga
+
+## Korisni linkovi
+
+- [Zebra Programming Language](https://en.wikipedia.org/wiki/Zebra_Programming_Language)
+- [Labelary - ZPL preview](http://labelary.com/viewer.html)
+- [ZPL II Programming manual](https://www.zebra.com/content/dam/zebra_new_ia/en-us/manuals/printers/common/programming/zpl-zbi2-pm-en.pdf)
+- [zpl-image](https://github.com/metafloor/zpl-image) - convert image to GRF encoded image
+
+### Browser Print SDK
+
+> Developers can now quickly add USB or Network based printing support to their browser-based apps on Windows 7, Windows 10 and Mac OSX systems, when using Internet Explorer v11, Chrome or Safari. The source code and documentation that come with Browser Print make adding print capabilities simple and straightforward. The ability to perform print time status checking is also included. This solution greatly simplifies the task of adding network or USB-based printing to your application—saving developers time. Developers can also enhance their apps with printer status checking at print time.
+
+- Windows 7, Windows 10 and Mac OSX
+- [Browser Print SDK](https://www.zebra.com/us/en/software/printer-software/browser-print.html)
+- [Browser Print](https://developer.zebra.com/products/printers/browser-print)
+- [Docs](https://www.zebra.com/content/dam/zebra_new_ia/en-us/solutions-verticals/product/Software/Printer%20Software/Link-OS/browser-print/zebra-browser-print-user-guide-v1-3-en-us.pdf)