Fix typo in 1.4 docs (#950)

Co-authored-by: GitHub Actions <[email protected]>

Author: jmagak

modules/release-notes/ref-release-notes-technology-preview.adoc

@@ -13,16 +13,16 @@ See: link:https://access.redhat.com/support/offerings/techpreview/[Technology Pr
 ====
 
 [id="technology-preview-rhidp-5545"]
-== Added notifcation backend plugins
-
-With this update, {product-short} includes the following dynamic plugins to manage and streamline notification delivery:
-
-* `https://npmjs.com/package/@backstage/plugin-signals/v/0.0.11[@backstage/plugin-signals]`
-* `https://npmjs.com/package/@backstage/plugin-notifications-backend/v/0.4.2[@backstage/plugin-notifications-backend]`
-* `https://npmjs.com/package/@backstage/plugin-notifications/v/0.3.2[@backstage/plugin-notifications]`
-* `https://npmjs.com/package/@backstage/plugin-notifications-backend-module-email/v/0.3.2[@backstage/plugin-notifications-backend-module-email]`
-
-These plugins are disabled by default.
+== Added notification backend plugins
+
+With this update, {product-short} includes the following dynamic plugins to manage and streamline notification delivery:
+
+* `https://npmjs.com/package/@backstage/plugin-signals/v/0.0.11[@backstage/plugin-signals]`
+* `https://npmjs.com/package/@backstage/plugin-notifications-backend/v/0.4.2[@backstage/plugin-notifications-backend]`
+* `https://npmjs.com/package/@backstage/plugin-notifications/v/0.3.2[@backstage/plugin-notifications]`
+* `https://npmjs.com/package/@backstage/plugin-notifications-backend-module-email/v/0.3.2[@backstage/plugin-notifications-backend-module-email]`
+
+These plugins are disabled by default.