Improves some grammer in the modules part.

doc/html/index.html

@@ -111,7 +111,7 @@ If these modules aren't found in the modules directory it is assumed
 that they either are in the kernel or they do not exist.   
 In the case of 2 disk compression, floppy needs to be included in the 
 kernel or included as a module.    
-Kmod inserts the modules, and kmod needs to be built-in to the kernel along
+Kmod inserts the modules, and kmod needs to be built into the kernel along
 with initrd and ramdisk.",</p>
 
 <p>