feat: add gitpod

.gitpod.yml

@@ -0,0 +1,17 @@
+ports:
+    - port: 3000
+      onOpen: open-preview
+  
+  tasks:
+    - init: yarn
+      command: yarn dev
+  
+  vscode:
+    extensions:
+      - dbaeumer.vscode-eslint@2.1.8:02aHhbJ0Q4aGdjHXlTdVKg==
+      - yzhang.markdown-all-in-one@3.3.0:fRpb0skkyto7j5ibdwKGTA==
+      - DavidAnson.vscode-markdownlint@0.37.0:JsyciBGHwqfyaOd093YHWQ==
+      - esbenp.prettier-vscode@5.7.1:GDba64T6G+TUi1qmc6BE3A==
+      - ms-vscode.vscode-typescript-tslint-plugin@1.2.2:0nQ3PEEA0NPEt3UcbCYiIQ==
+      - streetsidesoftware.code-spell-checker@1.9.2:ZMxDUqspUlYQu1bGxj+4MA==
+      - mgmcdermott.vscode-language-babel@0.0.29:S51DUCuN3aq2IN94LSDd9A==

README.md

@@ -1,3 +1,5 @@
+[![Gitpod ready-to-code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/blockstack/docs)
+
 # Blockstack documentation
 
 ![A screenshot of docs.blockstack.org](/public/images/docs-homepage.png)