util/kconfig: Fix README.md formatting

Change-Id: I0c47a603cc6e6174cd4895ff9f44b5bc242c653e
Signed-off-by: Richard Marko <srk@48.io>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78441
Reviewed-by: Martin L Roth <gaumless@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/util/kconfig/README.md b/util/kconfig/README.md
index 4d508a5..a02d903 100644
--- a/util/kconfig/README.md
+++ b/util/kconfig/README.md
@@ -13,7 +13,9 @@
 in an already-configured tree (`quilt pop -a` should cleanly unapply them all)
 or manually if quilt doesn't have its tracking metadata around yet:
 
-    $ for i in `ls patches/*.patch | tac`; do patch -p1 -R -i "$i"; done
+```sh
+for i in $( ls patches/*.patch | tac ); do patch -p1 -R -i "$i"; done
+```
 
 The result should be a subtree that, apart from a few coreboot specific
 files on our side (e.g. documentation, integration in our build system)
@@ -23,9 +25,11 @@
 `git log util/kconfig` output in our tree.
 
 Assuming that you want to uprev from Linux 5.13 to 5.14, with a Linux git tree
-available in ~/linux,
+available in `~/linux`
 
-    $ cd util/kconfig && (cd ~/linux/ && git diff v5.13..v5.14 scripts/kconfig) | patch -p2`
+```sh
+cd util/kconfig && (cd ~/linux/ && git diff v5.13..v5.14 scripts/kconfig) | patch -p2`
+```
 
 applies the changes to your local tree.
 
@@ -39,6 +43,7 @@
 the tree has been upreved to.
 
 ## Adding a new patch
+
 The format of the patches to kconfig is a mix of the headers produced by `git
 format-patch` and the patch format of quilt. However neither git nor quilt
 seems to have any functionality to directly produce a file in such a format