Re-test on nightly

Author: gdalle

.github/workflows/ci.yml

@@ -19,6 +19,9 @@ jobs:
           - version: '1.5'
             os: ubuntu-latest
             arch: x64
+          - version: 'nightly'
+            os: ubuntu-latest
+            arch: x64
     steps:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1

README.md

@@ -1,7 +1,7 @@
 # MetaGraphs
 
 [![Stable docs](https://img.shields.io/badge/docs-stable-blue.svg)](https://juliagraphs.org/MetaGraphs.jl/)
-[![Dev docs](https://img.shields.io/badge/docs-latest-blue.svg)](https://juliagraphs.org/MetaGraphs.jl/dev/)
+[![Dev docs](https://img.shields.io/badge/docs-dev-blue.svg)](https://juliagraphs.org/MetaGraphs.jl/dev/)
 [![Build Status](https://github.com/JuliaGraphs/Metagraphs.jl/workflows/CI/badge.svg?branch=master)](https://github.com/JuliaGraphs/Metagraphs.jl/actions?query=workflow%3ACI)
 [![Codecov](http://codecov.io/github/JuliaGraphs/Metagraphs.jl/coverage.svg?branch=master)](http://codecov.io/github/JuliaGraphs/Metagraphs.jl?branch=master)