minor #230 change information on WKHTMLTOPDF_PATH in README (Dennisde…

…Best)

This PR was merged into the 1.0-dev branch.

Discussion
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The configuration for the WKHTMLTOPDF_PATH is in the .env file, the yaml configuration file uses the environment variable.

Commits
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4f0db73 change information on WKHTMLTOPDF_PATH in README

README.md

@@ -44,14 +44,10 @@ Additional feature of the plugin that fulfills Invoicing domain is the ability t
 
 3. Check if you have wkhtmltopdf binary. If not, you can download it [here](https://wkhtmltopdf.org/downloads.html).
 
-In case wkhtmltopdf is not located in /usr/local/bin/wkhtmltopdf, add a following snippet at the end of your application's config.yml:
+In case wkhtmltopdf is not located in /usr/local/bin/wkhtmltopdf modify the `WKHTMLTOPDF_PATH` environment variable in the `.env` file:
 
 ```
-knp_snappy:
- pdf:
- enabled: true
- binary: /usr/local/bin/wkhtmltopdf # Change this! :)
- options: []
+WKHTMLTOPDF_PATH=/usr/local/bin/wkhtmltopdf # Change this! :)
 ```
 
 4. If you want to generate invoices for orders placed before plugin's installation run the following command using your terminal: