Add notes

README.md

@@ -24,10 +24,11 @@ available.
 
 -   このチュートリアルは[日本語](README.ja.md)でもご覧いただけます。
 
-:warning: **Note:** This tutorial is designed for **NGSI-v2** developers looking to switch or upgrade systems to
-**NGSI-LD**, if you are building a linked data system from scratch or you are not already familiar with **NGSI-v2** then
-it is recommmended that you look directly at the
-[NGSI-LD developers tutorial](https://ngsi-ld-tutorials.readthedocs.io/) documentation.
+> [!NOTE]
+> This tutorial is designed for **NGSI-v2** developers looking to switch or upgrade systems to
+> **NGSI-LD**, if you are building a linked data system from scratch or you are not already familiar with **NGSI-v2** then
+> it is recommmended that you look directly at the
+> [NGSI-LD developers tutorial](https://ngsi-ld-tutorials.readthedocs.io/) documentation.
 
 ## Contents
 
@@ -236,7 +237,8 @@ git checkout NGSI-v2
 ./services orion
 ```
 
-> **Note:** If you want to clean up and start over again you can do so with the following command:
+> [!NOTE]
+>  If you want to clean up and start over again you can do so with the following command:
 >
 > ```
 > ./services stop