Update readme.md

Author: harp077

readme.md

@@ -10,7 +10,8 @@
 <a target="_blank" href="https://docs.oracle.com/javase/8/docs/api"><img src="https://img.shields.io/badge/API-8-violet.svg"></a>
 <a href="https://github.com/harp077/pj-net-tools/commits/" title="Last Commit"><img src="https://img.shields.io/github/last-commit/harp077/pj-net-tools?style=flat"></a>
 <a href="https://github.com/harp077/pj-net-tools/issues" title="Open Issues"><img src="https://img.shields.io/github/issues/harp077/pj-net-tools?style=flat"></a>
-<a href="https://github.com/harp077/pj-net-tools/stargazers"><img src="https://img.shields.io/github/stars/harp077/pj-net-tools?style=flat" alt="GitHub stars" /></a>
+<a href="https://github.com/harp077/pj-net-tools/stargazers"><img src="https://img.shields.io/github/stars/harp077/pj-net-tools?style=flat" alt="GitHub stars"></a>
+<a href="https://sourceforge.net/projects/pj-net-tools" title="SourceForge Downloads"><img alt="SourceForge Downloads" src="https://img.shields.io/sourceforge/dt/pj-net-tools"></a>
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 Pure Java Network Tools. Free portable cross-platform. 
 ICMP-ping works well only when run as Admin in Windows or Root in Linux !