Merge branch 'bugfix/github-7830' into 'master'

docs: fix a small typo in logging library docs

Closes IDFGH-6153

See merge request espressif/esp-idf!15831

components/log/README.rst

@@ -7,7 +7,7 @@ Overview
 The logging library provides two ways for setting log verbosity:
 
 - **At compile time**: in menuconfig, set the verbosity level using the option :ref:`CONFIG_LOG_DEFAULT_LEVEL`.
-- Optionally, also in menuconfig, set the maximum verbosity level using the option :ref:`CONFIG_LOG_MAXIMUM_LEVEL`. By default this is the same as the default level, but it can be set higher in order to compile more otional logs into the firmware.
+- Optionally, also in menuconfig, set the maximum verbosity level using the option :ref:`CONFIG_LOG_MAXIMUM_LEVEL`. By default this is the same as the default level, but it can be set higher in order to compile more optional logs into the firmware.
 - **At runtime**: all logs for verbosity levels lower than :ref:`CONFIG_LOG_DEFAULT_LEVEL` are enabled by default. The function :cpp:func:`esp_log_level_set` can be used to set a logging level on a per module basis. Modules are identified by their tags, which are human-readable ASCII zero-terminated strings.
 
 There are the following verbosity levels: