Update README.md

README.md

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 # epsolar-tracer
 Tools for EPsolar Tracer BN solar charge controller
 ===================================================
-![Top](img/epsolar_tracer_bn.jpg)
+![Img](img/epsolar_tracer_bn.jpg)
+
 This is the second generation of the EPsolar Tracer solar charge controller. 
 You need RS-485 adapter for communication. The first generation controller 
-used RS-232 and a different protocol [https://github.com/xxv/tracer].
+used RS-232 and a different protocol. see https://github.com/xxv/tracer.
 
 [Product link](http://www.epsolarpv.com/en/index.php/Product/pro_content/id/573/am_id/136)  
 [Windows software & nice pictures](http://gwl-power.tumblr.com/tagged/tracer)