Update RAI4.sh

fix find url

RAI4.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 wget -d "http://mediapolis.rai.it/relinker/relinkerServlet.htm?cont=746966&output=45" -U "iphone" -O p.txt
-grep http  p.txt >temp.txt
+grep content  p.txt >temp.txt
 sed -e 's/<url type="content">//g' temp.txt >temp2.txt
 cat temp2.txt
 sed -e 's/<\/url>//g' temp2.txt >temp.txt