README: Remove redundant 'libpldm' from header path structure

We've moved away from this and have improved how header paths should be
specified with respect to the library.

Change-Id: I5ac92c10ac46e352de13a40a0bf81d01337acbbc
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
diff --git a/README.md b/README.md
index 29a5232..c9fe6ab 100644
--- a/README.md
+++ b/README.md
@@ -188,7 +188,7 @@
 ```text
  libpldm
     |---- include/libpldm
-    |        |---- oem/<oem_name>/libpldm
+    |        |---- oem/<oem_name>
     |                    |----<oem based .h files>
     |---- src
     |        |---- oem/<oem_name>