Added CII Best Practices Badge + removed unused LFX Security Tool badge

Signed-off-by: Flurb <private@tjalma.com>

Author: Flurb

README.md

@@ -1,7 +1,7 @@
 # `OpenSCD CoMPAS Edition`
 
 [![NodeJS Build Github Action Status](<https://img.shields.io/github/workflow/status/com-pas/compas-open-scd/NodeJS%20Build?logo=GitHub>)](https://github.com/com-pas/compas-open-scd/actions?query=workflow%3A%22NodeJS+Build%22)
-[![LFX Security Status](https://img.shields.io/badge/dynamic/json?color=orange&label=LFX%20Security%20Tool&query=issues%5B%3F%28%40%5B%27repository-name%27%5D%20%3D%3D%20%27compas-open-scd%27%29%5D%5B%27high-open-issues%27%5D&suffix=%20High%20open%20issues&url=https%3A%2F%2Fapi.security.lfx.linuxfoundation.org%2Fv1%2Fproject%2Fe8b6fdf9-2686-44c5-bbaa-6965d04ad3e1%2Fissues)](https://security.lfx.linuxfoundation.org/#/e8b6fdf9-2686-44c5-bbaa-6965d04ad3e1/issues)
+[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/5925/badge)](https://bestpractices.coreinfrastructure.org/projects/5925)
 [![Slack](https://raw.githubusercontent.com/com-pas/compas-architecture/master/public/LFEnergy-slack.svg)](http://lfenergy.slack.com/)
 
 Open Substation Communication Designer is an editor for SCL files as described in `IEC 61850-6`.