README: Remove sporadic tabs

Indentation was already done mainly with spaces, so this commit
removes the tabs and makes some of the whitespace more consistent.

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

README

@@ -209,7 +209,7 @@ CONFIGURING the kernel:
    You can find more information on using the Linux kernel config tools
    in Documentation/kbuild/kconfig.txt.
 
-	NOTES on "make config":
+ - NOTES on "make config":
 
     - Having unnecessary drivers will make the kernel bigger, and can
       under some circumstances lead to problems: probing for a
@@ -229,8 +229,8 @@ CONFIGURING the kernel:
       bigger or slower kernel (or both), and can even make the kernel
       less stable by configuring some routines to actively try to
       break bad code to find kernel problems (kmalloc()).  Thus you
-	  should probably answer 'n' to the questions for
-          "development", "experimental", or "debugging" features.
+      should probably answer 'n' to the questions for "development",
+      "experimental", or "debugging" features.
 
 COMPILING the kernel: