minor updates

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
diff --git a/docs/3.0-migration-guide.md b/docs/3.0-migration-guide.md
index 3911141..b0903e3 100644
--- a/docs/3.0-migration-guide.md
+++ b/docs/3.0-migration-guide.md
@@ -411,7 +411,7 @@
 
 ### Change `MBEDTLS_ECP_FIXED_POINT_OPTIM` behavior
 
-The option `MBEDTLS_ECP_FIXED_POINT_OPTIM` now increase code size and it does
+The option `MBEDTLS_ECP_FIXED_POINT_OPTIM` now increases code size and it does
 not increase peak RAM usage anymore.
 
 If you are limited by code size, you can define `MBEDTLS_ECP_FIXED_POINT_OPTIM`