docs : updating docs

Signed-off-by: Naveen MR <oof1lab@gmail.com>

packages/noco-docs/content/en/getting-started/upgrading.md

@@ -67,13 +67,13 @@ docker push registry.heroku.com/<Heroku App Name>/web
 heroku container:release -a <Heroku App Name> web
 ```
 
-> Note if you're using *Apple M1 chipset*:
-> 
-> Make sure you change Docker's default architecture to `linux/amd64` by running the following command _before_ executing the aforementioned steps
+#### On Apple M1 Chipset 
+
+> Please make sure you change Docker's default architecture to `linux/amd64` by running the following command _before_ executing the aforementioned steps
 > 
 > ```export DOCKER_DEFAULT_PLATFORM=linux/amd64```
 >
-> Source: https://medium.com/geekculture/from-apple-silicon-to-heroku-docker-registry-without-swearing-36a2f59b30a3
+> More details [here](https://medium.com/geekculture/from-apple-silicon-to-heroku-docker-registry-without-swearing-36a2f59b30a3). 
 
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