Add DWeb Addressing intro and table of contents

addressing/README.md

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+# Addressing on the Decentralized Web
+
+> Note: This document is work in progress and largely incomplete.
+
+Authors:
+- Lars Gierth \<[email protected]>
+
+Table of contents:
+- Introduction
+- The precarious web
+  - Link competition and link rot
+  - The addressing rift
+- DWeb Addressing
+- Namespaces
+  - /ipfs -- immutable data
+  - /ipns -- mutable pointers
+  - Addressing data from other content-addressed systems
+  - Network addressing
+- Interoperability
+  - DWeb Addressing with HTTP
+  - URL schemes
+  - dweb: URI scheme
+  - Content Security Policy / Origins
+- Appendix
+  - Implementations
+  - DWeb Maturity Model
+  - Future Work
+  - FAQ
+
+Related work:
+- IPFS: peer-to-peer hypermedia protocol
+- IPLD: data model of the content-addressable web
+- dnslink: human-readable IPNS names
+
+
+## Introduction
+
+Location-based addressing is a centralizing vector on the web.
+It lets links rot and drives copies of content into mutual competition.
+
+This document describes a content-based addressing model
+which provides permanent links that don't rot and are cryptographically verifiable.
+The result is a more cooperative, resilient, and performant web.