Readme: badges (#3)

* github: update node version

* github: coverall

* package: formatReadme

* README: add badges

* README: cleanup

* package: coverage

.github/workflows/coverall.yml

@@ -0,0 +1,21 @@
+on: ["push", "pull_request"]
+
+name: Test Coveralls
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Use Node.js 20.x
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20.x
+      - name: Install dependencies
+        run: npm ci
+      - name: run coverage
+        run: npm run coverage
+      - name: Coveralls
+        uses: coverallsapp/github-action@v2

.github/workflows/main.yml

@@ -4,15 +4,15 @@ on:
   pull_request:
     branches: [main]
   workflow_dispatch:
-    
+
 jobs:
   test:
     runs-on: ubuntu-latest
     timeout-minutes: 5
 
     strategy:
       matrix:
-        node-version: [19.x]
+        node-version: [20.x]
 
     steps:
       - name: "Checkout current repository"

README.md

@@ -1,14 +1,17 @@
-# graph, a directed graph library
+# graph, a small directed graph library
 
-Graph is a simple directed graph library written in TypeScript, that provides:
+[![CI](https://github.com/okcontract/graph/actions/workflows/main.yml/badge.svg)](https://github.com/okcontract/graph/actions?query=branch%3Amain++)
+[![Coverage Status](https://coveralls.io/repos/github/okcontract/graph/badge.svg?branch=main)](https://coveralls.io/github/okcontract/graph?branch=main)
+[![size](https://deno.bundlejs.com/badge?q=@okcontract/graph)](https://bundlephobia.com/package/@okcontract/graph)
+
+Graph is a simple directed graph library with no runtime dependency written in
+TypeScript, that provides:
 
 - Ability to add and remove node and edges
 - (Partial) topological sort
 - Cache paths for cases with (much) more reads than writes
 - Export to graphviz `.dot` files
 
-This library has no dependencies and the build artifact is 3.6kB (1.41kB gzipped).
-
 # Walkthrough
 
 ```ts
@@ -41,17 +44,23 @@ console.log(
       string: "style=filled,fillcolor=aquamarine",
       number: "style=filled,fillcolor=gold",
       object: "style=filled,fillcolor=hotpink",
-    }
-  )
+    },
+  ),
 );
 ```
 
 # About
 
-`graph` is written by the team at [OKcontract](https://okcontract.com) and is released under the MIT license.
+`graph` is written by the team at [OKcontract](https://okcontract.com) and is
+released under the MIT license.
 
-We aim for ease of use and correction. Chasing down any bug is our top priority.
+We aim for ease of use and correction. Chasing down any bug is our top
+priority.
 
-Contributors are welcome, feel free to submit PRs directly for small changes. You can also reach out in our [Discord](https://discord.gg/Cun5aF7k) or contact us on [Twitter](https://x.com/okcontract) in advance for larger contributions.
+Contributors are welcome, feel free to submit PRs directly for small changes.
+You can also reach out in our [Discord](https://discord.gg/Cun5aF7k) or
+contact us on [Twitter](https://x.com/okcontract) in advance for larger
+contributions.
 
-This work is supported in part by a RFG grant from [Optimism](https://optimism.io).
+This work is supported in part by a RFG grant from
+[Optimism](https://optimism.io).