Merge pull request #2 from dhensby/pulls/updates

Update tests, dependencies and header typing

Author: dhensby

.github/workflows/nodejs.yml

@@ -26,7 +26,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 16.x]
+        node-version: [12.x, 14.x, 16.x, 18.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
     steps:
       - uses: actions/checkout@v2

README.md

@@ -1,5 +1,7 @@
 # HTTP Message Signatures
 
+[![Node.js CI](https://github.com/dhensby/node-http-message-signatures/actions/workflows/nodejs.yml/badge.svg)](https://github.com/dhensby/node-http-message-signatures/actions/workflows/nodejs.yml)
+
 Based on the draft specifications for HTTP Message Signatures, this library facilitates the signing
 of HTTP messages before being sent.