fixed omitted word

README.md

@@ -23,8 +23,8 @@ please use the issue-tracker for reporting any problems
 # DEPENDENCIES
 the v4l2loopback module is a *kernel module*.
 in order to build it, you *must have* the kernel headers installed that match
-the linux kernel with which you want to use the module (in most this will be
-the kernel that you are currently running).
+the linux kernel with which you want to use the module (in most cases this will
+be the kernel that you are currently running).
 please note, that kernel headers and kernel image must have *exactly the same* version.
 for example, `3.18.0-trunk-rpi` is a different version that `3.18.7-v7+`, even though
 the first few number are the same.