[PATCH v2 12/12] kas: Add kas/README.md

[Uladzimir Bely <ubely@ilbers.de>]

Add a brief description of `kas-container` usage.

Signed-off-by: Uladzimir Bely <ubely@ilbers.de>
---
 README.md     |  3 +++
 kas/README.md | 36 ++++++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 kas/README.md

diff --git a/README.md b/README.md
index 118acf52..f549aa9f 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,9 @@ https://github.com/ilbers/isar/
 
 Instruction on how to build can be found in the [User Manual](doc/user_manual.md).
 
+For beginners, it could be easier to use kas-based approach that allows to
+simply configure and run build using menu. Look at [kas/README](kas/README.md)
+for the instructions.
 
 # Try
 
diff --git a/kas/README.md b/kas/README.md
new file mode 100644
index 00000000..d821f0c8
--- /dev/null
+++ b/kas/README.md
@@ -0,0 +1,36 @@
+# Support of kas
+
+[kas](https://github.com/siemens/kas) is a tool to setup bitbake based projects.
+
+Directory `kas` contains required configuration fragments to setup and build
+Isar with `kas-container` script and Kconfig language.
+
+## Requirements
+
+Since kas uses Docker or Podman based containers, users that runs Isar build
+using `kas-container` script should be allowed to run these containers in
+privileged mode.
+
+## Configuring Isar build
+
+```
+./kas/kas-container menu
+```
+
+This creates `.config.yaml` file in isar root that stores the configuration.
+
+
+## Building Isar after configuration done
+
+```
+./kas/kas-container build
+```
+
+This generates `build/conf/` configuration and starts building Isar using
+kas container. Required image will be downloaded if not yet).
+
+To access bulid shell, the following command can be used:
+
+```
+./kas/kas-container shell
+```
-- 
2.20.1