fix status badge

Author: j-fu

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
         version:
           - '1.9' # Replace this with the minimum Julia version that your package supports. E.g. if your package requires Julia 1.5 or higher, change this to '1.5'.
           - '1'   # Leave this line unchanged. '1' will automatically expand to the latest stable 1.x release of Julia.
-          - 'nightly'
+#          - 'nightly'
         os:
           - ubuntu-latest
           - windows-latest

README.md

@@ -1,6 +1,6 @@
 # ExtendableSparse.jl
 
-[![Build status](https://github.com/WIAS-PDELib/ExtendableSparse.jl/workflows/linux-macos-windows/badge.svg)](https://github.com/WIAS-PDELib/ExtendableSparse.jl/actions)
+[![Build status](https://github.com/WIAS-PDELib/ExtendableSparse.jl/actions/workflows/ci.yml/badge.svg?branch=master)](https://github.com/WIAS-PDELib/ExtendableSparse.jl/actions/workflows/ci.yml?query=branch%3Amaster)
 [![](https://img.shields.io/badge/docs-stable-blue.svg)](https://WIAS-PDELib.github.io/ExtendableSparse.jl/stable)
 [![](https://img.shields.io/badge/docs-dev-blue.svg)](https://WIAS-PDELib.github.io/ExtendableSparse.jl/dev)
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.3530554.svg)](https://doi.org/10.5281/zenodo.3530554)