v20.08 release

* Bug fixes
  * strcmp-mte nul check
  * strncmp-mte with large size
  * arm memcpy with large size (CVE-2020-6096)
* String routines performance improvements
  * strlen
  * memmove with backward copy
* Benchmarking code for strings and memory routines
  * strlen

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
diff --git a/README b/README
index 6cde5cd..041aa1a 100644
--- a/README
+++ b/README
@@ -9,7 +9,7 @@
 to projects that require copyright assignment is possible.
 
 Regular quarterly releases are tagged as vYY.MM, the latest
-release is v20.05.
+release is v20.08.
 
 Source code layout: