README: update README.md to make test available on docker containers

README.md

@@ -144,7 +144,7 @@ You can replace `NANOS` with `NANOSP`, `NANOX`, `STAX` for the other devices in
 ### Testing
 To test the application you need to enable python virtual environment and some dependencies. On any operating system, create a python virtual environment and activate it.
 ```
-$ sudo apt-get update && sudo apt-get install -y qemu-user-static tesseract-ocr libtesseract-dev python3-pip libgmp-dev libsodium-dev git
+$ apt-get update && apt-get install -y qemu-user-static tesseract-ocr libtesseract-dev python3-pip python3.10-venv libgmp-dev libsodium-dev git
 $ python3 -m venv env
 $ source env/bin/activate
 ```
@@ -165,6 +165,13 @@ These tests are run on Ledger emulator called speculos which emulates the actual
 ```
 Note the `-s` flag which is required when running interactive tests with pytest. You can also choose `ledgerwallet` backend to run tests on device.
 
+#### Using docker
+
+These steps can be perfomed in an ubuntu container
+```
+$ docker pull ubuntu:latest
+$ docker run --rm -v "$(pwd):/app" -w /app -ti ubuntu bash
+```
 
 ### Installing the apps onto your Ledger device without Ledger Live