Add power jack (finally found) thanks Renie ;)

README.md

@@ -1,7 +1,7 @@
 KiCAD Library
 =============
 
-Terabytes of space and no patience to unzip 10kb pkgs? Me too.
+*Terabytes* of space and no patience to unzip *10kb pkgs*? Me too.
 
 
 Just symlink or copy to your share/kicad folder.
@@ -10,7 +10,6 @@ Just symlink or copy to your share/kicad folder.
 Have fun!
 
 
-
 PT
 --
 
@@ -25,17 +24,18 @@ Resources
 KiCAD 160Mb All Files Download
 
 Oshtec Converted Eagle Files (Dmitri N. Sytov)
-http://library.oshec.org
+[Oshtec]: http://library.oshec.org
 
 Smisioto
-http://smisioto.no-ip.org/elettronica/kicad/kicad-en.htm
+[Smisioto]: http://smisioto.no-ip.org/elettronica/kicad/kicad-en.htm
 
-RSM on web (Renie
-http://www.reniemarquet.cjb.net/bibliotecas.html
+RSM on web (Renie S. Marquet)
+[RSM]: http://www.reniemarquet.cjb.net/bibliotecas.html
 
-http://www.kicadlib.org/
+kicadlib.org
+[KiCAD Lib] http://www.kicadlib.org/
 No "all.tgz" pkg
 
 
 Didn't found something? Try http://per.launay.free.fr/kicad/kicad_php/composant.php
-Don't forget to add it here later!
+Don't forget to add it here later!