Added 2.6 to the version table

Author: matija9

README.md

@@ -8,6 +8,7 @@ This folder adds CMake support to KUKA's Fast Robot Interface (FRI).
 | `1.15`      | [![Build status](https://github.com/lbr-stack/fri/actions/workflows/build.yaml/badge.svg?branch=fri-1.15)](https://github.com/lbr-stack/fri/actions/workflows/build.yaml) |
 | `1.16`      | [![Build status](https://github.com/lbr-stack/fri/actions/workflows/build.yaml/badge.svg?branch=fri-1.16)](https://github.com/lbr-stack/fri/actions/workflows/build.yaml) |
 | `2.5`       | [![Build status](https://github.com/lbr-stack/fri/actions/workflows/build.yaml/badge.svg?branch=fri-2.5)](https://github.com/lbr-stack/fri/actions/workflows/build.yaml)  |
+| `2.6`       | [![Build status](https://github.com/lbr-stack/fri/actions/workflows/build.yaml/badge.svg?branch=fri-2.6)](https://github.com/lbr-stack/fri/actions/workflows/build.yaml)  |
 | `2.7`       | [![Build status](https://github.com/lbr-stack/fri/actions/workflows/build.yaml/badge.svg?branch=fri-2.7)](https://github.com/lbr-stack/fri/actions/workflows/build.yaml)  |
 
 ## Build