doc: group major guides in one directory (#8992)

* doc: group major guides in one directory

Moved major guides to one directory without removing files.
Moved images for guides to the guides directory.
This makes it easier to find information
and use cross-linking.

Signed-off-by: Grzegorz Ferenc <Grzegorz.Ferenc@nordicsemi.no>

* Restyled by prettier-markdown

Co-authored-by: Restyled.io <commits@restyled.io>
diff --git a/docs/guides/nrfconnect_examples_cli.md b/docs/guides/nrfconnect_examples_cli.md
index 174aad4..7297df8 100644
--- a/docs/guides/nrfconnect_examples_cli.md
+++ b/docs/guides/nrfconnect_examples_cli.md
@@ -1,15 +1,8 @@
 # Using CLI in nRF Connect examples
 
-The following examples for the development kits from Nordic Semiconductor
-include a command-line interface that allows access to application logs and
-[Zephyr shell](https://docs.zephyrproject.org/1.13.0/subsystems/shell.html):
-
--   [CHIP nRF Connect Lock Example Application](../../examples/lock-app/nrfconnect/README.md)
--   [CHIP nRF Connect Lighting Example Application](../../examples/lighting-app/nrfconnect/README.md)
-
-The
-[CHIP nRF Connect Pigweed Example Application](../../examples/pigweed-app/nrfconnect/README.md)
-does not support CLI.
+Some Matter examples for the development kits from Nordic Semiconductor include
+a command-line interface that allows access to application logs and
+[Zephyr shell](https://docs.zephyrproject.org/1.13.0/subsystems/shell.html).
 
 ## Accessing the CLI console