Update README.md
Those links were actually correct.
| ------------- | --------------------------------------------------------------------------------------------------- |
| main (use 1.14.x) | ![master](https://github.com/pupnp/pupnp/workflows/Build/badge.svg) |
| branch-1.14.x | ![1.14.x](https://github.com/pupnp/pupnp/workflows/Build/badge.svg?branch=branch-1.14.x) |
-| branch-1.12.x | ![1.12.x](https://github.com/pupnp/pupnp/workflows/Build/badge.svg?branch=branch-1.12.x) |
-| branch-1.10.x | ![1.10.x](https://github.com/pupnp/pupnp/workflows/Build/badge.svg?branch=branch-1.10.x) |
-| branch-1.8.x | ![1.8.x](https://github.com/pupnp/pupnp/workflows/Build/badge.svg?branch=branch-1.8.x) |
-| branch-1.6.x | ![1.6.x](https://github.com/pupnp/pupnp/workflows/Build/badge.svg?branch=branch-1.6.x) |
-| branch-1.4.x | ![1.4.x](https://github.com/pupnp/pupnp/workflows/Build/badge.svg?branch=branch-1.4.x) |
+| branch-1.12.x | ![1.12.x](https://github.com/pupnp/pupnp/workflows/C%2FC%2B%2B%20CI/badge.svg?branch=branch-1.12.x) |
+| branch-1.10.x | ![1.10.x](https://github.com/pupnp/pupnp/workflows/C%2FC%2B%2B%20CI/badge.svg?branch=branch-1.10.x) |
+| branch-1.8.x | ![1.8.x](https://github.com/pupnp/pupnp/workflows/C%2FC%2B%2B%20CI/badge.svg?branch=branch-1.8.x) |
+| branch-1.6.x | ![1.6.x](https://github.com/pupnp/pupnp/workflows/C%2FC%2B%2B%20CI/badge.svg?branch=branch-1.6.x) |
+| branch-1.4.x | ![1.4.x](https://github.com/pupnp/pupnp/workflows/C%2FC%2B%2B%20CI/badge.svg?branch=branch-1.4.x) |
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