chore(README): update README (#32)

Author: Jimmy Chu

README.md

@@ -12,12 +12,15 @@ This is a GitHub template repository, feel free to use it and adapt it to your u
 # How to use
 ## Requirements
 - Docker
+- Optional: GitHub Settings App: https://probot.github.io/apps/settings/ 
+- Optional: GitHub Stale App: https://github.com/apps/stale
 
 ## Getting started
 - Use this template to create your own repository: https://github.com/chujimmy/cv_template/generate
 - Checkout your newly created repository
 - Update environment variables in the `docker-compose.yml` file accordingly
 - Fill the CVs with your experiences
+- Update notification settings (if needed)
 
 ## Run the container
 `make start` will download and build the Docker image and then start the container. It will automatically find all `cv.tex` and `letter.tex` files located in the correct folders (respectively `./src/cv/lang/<lang>/cv.tex` and `./src/letter/lang/<lang>/letter.tex`), compile them to generate the pdf files and watch them, so they will be automatically recompiled on update.