Update README.md

Signed-off-by: Inho Oh <inho.oh@sk.com>

Author: webispy

README.md

@@ -2,24 +2,7 @@
 
 The `checkpatch.pl` is a perl script to verify that your code conforms to the Linux kernel coding style. This project uses `checkpatch.pl` to automatically review and leave comments on pull requests.
 
-## Resources
-
-Following files are used to this project.
-
-- https://raw.githubusercontent.com/torvalds/linux/master/scripts/checkpatch.pl
-- https://raw.githubusercontent.com/torvalds/linux/master/scripts/spelling.txt
-
-## Patch
-
-### add option for excluding directories
-
-From [zephyr](https://github.com/zephyrproject-rtos/zephyr) project:
-
-- https://github.com/zephyrproject-rtos/zephyr/commit/92a12a19ae5ac5fdf441c690c48eed0052df326d
-
-### Disable warning for "No structs that should be const ..."
-
-- https://github.com/nugulinux/docker-devenv/blob/master/patches/0002-ignore_const_struct_warning.patch
+![check](https://raw.githubusercontent.com/wiki/webispy/checkpatch-action/img/action_conversation_check.png)
 
 ## Action setup guide
 
@@ -44,6 +27,10 @@ jobs:
 
 The checkpatch action will posting comments for error/warning result to the PR conversation.
 
+![check](https://raw.githubusercontent.com/wiki/webispy/checkpatch-action/img/action_conversation_comment.png)
+
+The capture image above shows the comments on the lines of code and the comments on the commit message.
+
 ### Pull Request from forked repository
 
 The Github action has a limitation that doesn't have write permission for PR from forked repository. So the action cannot write a comment to the PR.
@@ -63,8 +50,35 @@ jobs:
       uses: webispy/checkpatch-action@master
 ```
 
-You can find the error/waring result from Github action console log.
+Due to the above limitations, you can check the comments directly in the console log.
+
+![console log](https://raw.githubusercontent.com/wiki/webispy/checkpatch-action/img/action_console.png)
+
+## References
+
+### checkpatch tool
+
+Following files are used to this project.
+
+- https://raw.githubusercontent.com/torvalds/linux/master/scripts/checkpatch.pl
+- https://raw.githubusercontent.com/torvalds/linux/master/scripts/spelling.txt
+
+### Patch
+
+#### Add option for excluding directories
+
+From [zephyr](https://github.com/zephyrproject-rtos/zephyr) project:
+
+- https://github.com/zephyrproject-rtos/zephyr/commit/92a12a19ae5ac5fdf441c690c48eed0052df326d
+
+#### Disable warning for "No structs that should be const ..."
+
+- https://github.com/nugulinux/docker-devenv/blob/master/patches/0002-ignore_const_struct_warning.patch
+
+### Docker image
+
+You can find the Dockerfile from [docker](https://github.com/webispy/checkpatch-action/tree/docker) branch of this repository.
 
-# License
+## License
 
 Since the `checkpatch.pl` file is a script in the Linux kernel source tree, you must follow the [GPL-2.0](https://github.com/torvalds/linux/blob/master/COPYING) license, which is your kernel license.