Simple typo fix in the README.md

[iiSeymour]

Description

Trivial typo fix in the README.

Status

READY

[mbed-ci]

Automatic CI verification build not done, please verify manually.

[0xc0170]

/morph build

[mbed-ci]

Build : SUCCESS

Build number : 824
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/5807/

Triggering tests

/morph test
/morph uvisor-test
/morph export-build

[mbed-ci]

Test : SUCCESS

Build number : 665
Test logs :http://mbed-os-logs.s3-website-us-west-1.amazonaws.com/?prefix=logs/5807/665

[mbed-ci]

Exporter Build : SUCCESS

Build number : 481
Build artifacts/logs : http://mbed-os.s3-website-eu-west-1.amazonaws.com/?prefix=builds/exporter/5807/

[0xc0170]

/morph uvisor-test

[alzix]

/morph uvisor-test

[cmonr]

Not sure why, but uVisior results are not being reported.

Test ran twice, with both being successful. Marked for merge.

[alzix]

@cmonr , uVisor CI marked as passed "AWS-CI uVisor Build & Test — Success"

[cmonr]

@alzix My mistake. For some reason, I thought results were reported by mbed-ci similar to other morph tests.