fix: ci build and README badge

Author: cmhulbert

.github/workflows/build.yml

@@ -14,10 +14,10 @@ on:
 
 jobs:
   build:
-        runs-on: ubuntu-latest
+    runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install blosc
         run: |
           sudo apt-get update

README.md

@@ -1,4 +1,4 @@
-# n5-zarr [![Build Status](https://github.com/saalfeldlab/n5-zarr/actions/workflows/build-main.yml/badge.svg)](https://github.com/saalfeldlab/n5-zarr/actions/workflows/build-main.yml)
+# n5-zarr [![Build Status](https://github.com/saalfeldlab/n5-zarr/actions/workflows/build.yml/badge.svg)](https://github.com/saalfeldlab/n5-zarr/actions/workflows/build.yml)
 
 This library provides support for the [Zarr v2](https://zarr-specs.readthedocs.io/en/latest/v2/v2.0.html) and
 [Zarr v3](https://zarr-specs.readthedocs.io/en/latest/v3/core/index.html) storage formats for the N5 API.