Update install.txt

Personal addition/install.txt

@@ -3,7 +3,7 @@ cd lcdproc
 sudo apt-get install autoconf automake
 apt-get install build-essential
 sudo sh autogen.sh
-./configure --enable-drivers=all
+./configure --prefix=/usr/local --enable-drivers=all
 make
 sudo make install
 LCDd.conf driverpath= whereis lcdproc