docs: configuration: Fix minor wording mistakes

Fixes minor issues in the configuration documentation.

Signed-off-by: Georgios Vasilakis <georgios.vasilakis@nordicsemi.no>
Change-Id: Ia6fa264d9ac7e25fda4513bc38c2c7e13f7b0829
diff --git a/docs/configuration/index.rst b/docs/configuration/index.rst
index 2fe9f94..b8a87b4 100644
--- a/docs/configuration/index.rst
+++ b/docs/configuration/index.rst
@@ -31,7 +31,7 @@
    local to a component or externally referenced when components are coupled.
    Options are in C header file. The :ref:`Header_configuration` has more
    details about it.
-   In the :ref:`Base_configuration` table theses options have *Component* type.
+   In the :ref:`Base_configuration` table these options have *Component* type.
 
 .. Note::
    Originally, TF-M used CMake variables for both building and component tuning
@@ -79,7 +79,7 @@
 Priorities
 **********
 
-A project configueration performed in multiple steps with priorities.
+A project configuration performed in multiple steps with priorities.
 The list below explains the process but for the details specific to
 :ref:`tfm_cmake_configuration` or :ref:`Header_configuration` please
 check the corresponded document.
@@ -91,7 +91,7 @@
 
 .. Note::
    To ensure a clear intention and conscious choice, all options must be
-   providede explicitly via a project configuration file. Default values
+   provided explicitly via a project configuration file. Default values
    on step 1 will generate warnings which expected to break a build.
 
 .. _Base_configuration:
@@ -100,8 +100,8 @@
 Base Configuration
 ******************
 
-The base configuration is the ground for configuring TF-M providing default
-defined in ``/config/config_base.cmake`` and ``/config/config_base.h``.
+The base configuration is the ground for configuring TF-M, provided defaults
+are defined in ``/config/config_base.cmake`` and ``/config/config_base.h``.
 The base build includes SPM and platform code only.
 
 This table lists the config option categorizations of the SPM and Secure
diff --git a/docs/configuration/kconfig_system.rst b/docs/configuration/kconfig_system.rst
index 015d258..655d4c2 100644
--- a/docs/configuration/kconfig_system.rst
+++ b/docs/configuration/kconfig_system.rst
@@ -11,7 +11,7 @@
 It handles dependencies and validations automatically when you change configurations so that the
 generated configuration options are always valid.
 
-To use the Kconfig system, enable ``USE_KCONFIG_TOOL`` in commande line.
+To use the Kconfig system, enable ``USE_KCONFIG_TOOL`` in command line.
 And enable ``MENUCONFIG`` to launch configuration GUI.
 
 The Kconfig system consists of `The Kconfig tool`_ and the `The Kconfig files`_.
@@ -29,7 +29,7 @@
 - Header file
 
   Contains component options in the header file system.
-  Component options are gathered together in a seperate menu ``TF-M component configs`` in
+  Component options are gathered together in a separate menu ``TF-M component configs`` in
   `The Kconfig files`_.
 
 - The .config and .config.old files
@@ -44,7 +44,7 @@
 The first loaded options are overridden by later ones if the config files contain duplicated
 options.
 And dependencies between config options are taken care of.
-It then launchs a configuration GUI for users to change any config options if the ``MENUCONFIG`` is
+It then launches a configuration GUI for users to change any config options if the ``MENUCONFIG`` is
 enabled in build command line.
 
 Integration with TF-M build system