Add some whitespace to README

Signed-off-by: Alastair D'Silva <alastair@d-silva.org>

Author: deece

README.md

@@ -72,10 +72,13 @@ A typical use of libocxl will follow this pattern:
 
 # Development
 The following environment variables may be set (to 1 or "YES") to assist with development:
+
 **LIBOCXL_INFO** Print information about the LibOCXL build to stderr. This should be included in any bug reports.
+
 **LIBOCXL_TRACE_ALL** Force AFU interaction trace messages to be emitted for all AFUs unless explicitly disabled.
+
 **LIBOCXL_VERBOSE_ERRORS_ALL** Force verbose errors to be emitted for any failed LibOCXL calls, unless explicitly disabled.
 
 Patches may be submitted via Github pull requests. Please prepare your patches
 by running `make precommit` before committing your work, and addressing any warnings & errors reported.
-Patches must compile cleanly with the latest stable version of GCC to be accepted.
+Patches must compile cleanly with the latest stable version of GCC to be accepted.