Docs: Fix syntax error.

Change-Id: I054e9142a6cc088a1f8dcfc684860d79db4a6212
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Docs: Use \e tag for newly introduced term.

Change-Id: Iea20023db58714bec4e084c4f6adb647314a1887
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>