Copy edit changes to Readme.md

Copy edit changes, mostly for active voice and consistent tense.

Author: Amanda Butler

features/mbedtls/targets/TARGET_CRYPTOCELL310/Readme.md

@@ -11,12 +11,12 @@ The CC 310 driver consists of three libraries:
 To port your CC 310 driver to Mbed OS on your specific target, do the following:
 
 1. In `targets.json` add the following  to your target:
- 	* `MBEDTLS_CONFIG_HW_SUPPORT` to `macros_add` key. This is used to suggest there is HW accelerated cryptography engine that will replace the default Mbed TLS implementation.
- 	* `CRYPTOCELL` to `device_has_add` key. This should be used in your common code, that you need to remove from compilation in case CC exists in your board. Use `#if !defined(DEVICE_CRYPTOCELL)` or  `#if DEVICE_CRYPTOCELL`.
- 	* `CRYPTOCELL310` to `extra_labels_add` key. This is used for the build system to look for the CC 310 code and binaries.
-1. In `objects.h`, include `objects_cryptocell.h`. You can use the `DEBICE_CRYPTOCELL` pre-compilation check as defined above.
+ 	* `MBEDTLS_CONFIG_HW_SUPPORT` to `macros_add` key. This suggests there is a hardware accelerated cryptography engine that replaces the default Mbed TLS implementation.
+ 	* `CRYPTOCELL` to `device_has_add` key. Use this in your common code that you need to remove from compilation in case CC exists in your board. Use `#if !defined(DEVICE_CRYPTOCELL)` or  `#if DEVICE_CRYPTOCELL`.
+ 	* `CRYPTOCELL310` to `extra_labels_add` key. The build system uses this to look for the CC 310 code and binaries.
+1. In `objects.h`, include `objects_cryptocell.h`. You can use the `DEBICE_CRYPTOCELL` precompilation check as defined above.
 1. In `features/mbedtls/targets/TARGET_CRYPTOCELL310/TARGET_<target name>`, add your platform-specific libraries for all toolchains in `TOOLCHAIN_ARM`, `TOOLCHAIN_GCC_ARM` and `TOOLCHAIN_IAR` respectively.
 1. Add your CC setup code:
-	* Implement `cc_platform_setup()` and `cc_platform_terminate()` to enable CC on your platform, in case you have board specific setup functionality, required for CC setup. You can implement these functions as empty functions.
+	* Implement `cc_platform_setup()` and `cc_platform_terminate()` to enable CC on your platform, in case you have board-specific setup functionality, required for CC setup. You can implement these functions as empty functions.
 	* Define `cc_platform_ctx` in `cc_platform.h` in a way that suits your implementation.