Getting-started documentation in README

[chrylis]

The main README suggests inserting property entries like this:

jasypt.encryptor.password=${JASYPT_ENCRYPTOR_PASSWORD:}

However, Spring Boot's property binding already handles this internally, and these entries appear to be redundant.

[ulisesbocchio]

I am aware, and although that particular example seems redundant, it helps understand that you can map it to any other ENV variable you desire:

jasypt.encryptor.password=${SOME_OTHER_VARIABLE_THAT_HOLDS_MY_PASSWORD:}