Merge ~kzapalowicz/snappy-hwe-snaps/+git/wifi-ap:fix/security-typo into ~snappy-hwe-team/snappy-hwe-snaps/+git/wifi-ap:master

[Konrad Zapałowicz]

docs: fix typo

[Simon Fels (morphis)]

LGTM

review: Approve

[System Enablement Bot (system-enablement-ci-bot)]

PASSED: Continuous integration, rev:d99025f9a345f1cccfa2e3f4b20ba57fd7a05d8e
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1619/
Executed test runs:
    SUCCESS: https://jenkins.canonical.com/system-enablement/job/generic-build-snap-worker/2059
    None: https://jenkins.canonical.com/system-enablement/job/generic-update-snap-mp/1527/console
    SUCCESS: https://jenkins.canonical.com/system-enablement/job/generic-test-snap/2430
    None: https://jenkins.canonical.com/system-enablement/job/generic-cleanup-snap/1616/console

Click here to trigger a rebuild:
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1619/rebuild

review: Approve (continuous-integration)

diff --git a/docs/reference/configuration.md b/docs/reference/configuration.md
index aba7133..49999db 100644
--- a/docs/reference/configuration.md
+++ b/docs/reference/configuration.md
@@ -147,7 +147,7 @@ Example:
 $ wifi-ap.config set wifi.security=wpa2
 ```
 
-## wifi.secrutiy-passphrase
+## wifi.security-passphrase
 
 WiFi security passphrase.