Add graph of librustzcash crate dependencies to README.md

README.md

@@ -3,6 +3,81 @@
 This repository contains a (work-in-progress) set of Rust crates for working
 with Zcash.
 
+```mermaid
+graph TB
+    subgraph librustzcash
+        direction TB
+        subgraph main
+        zcash_address
+        zcash_primitives
+        zcash_transparent
+        zcash_proofs
+        zcash_protocol
+        pczt
+        zcash_client_backend
+        zcash_client_sqlite
+        zcash_keys
+        zip321
+        end
+
+        subgraph standalone_components
+        equihash
+        f4jumble
+        zcash_encoding
+        end
+    end
+
+    subgraph protocols
+    sapling[sapling-crypto]
+    orchard[orchard]
+    end
+
+    subgraph protocol_components
+    zcash_note_encryption
+    zip32
+    zcash_spec
+    end
+
+    zcash_client_sqlite --> zcash_client_backend
+    zcash_client_backend --> zcash_primitives
+    zcash_client_backend --> zip321
+    zcash_client_backend --> zcash_keys
+    pczt --> zcash_primitives
+    zcash_proofs --> zcash_primitives
+    zcash_primitives --> zcash_protocol
+    zcash_primitives --> equihash
+    zcash_primitives --> zcash_encoding
+    zcash_primitives --> zcash_address
+    zcash_primitives --> zcash_transparent
+    zcash_primitives --> sapling
+    zcash_primitives --> orchard
+    zcash_keys --> zcash_address
+    zcash_keys --> zcash_encoding
+    zcash_keys --> zip32
+    zcash_keys --> zcash_transparent
+    zcash_keys --> orchard
+    zcash_keys --> sapling
+    zcash_transparent --> zcash_protocol
+    zcash_transparent --> zcash_address
+    zcash_transparent --> zip32
+    zip321 --> zcash_address
+    zip321 --> zcash_protocol
+    zcash_address --> zcash_protocol
+    zcash_address --> f4jumble
+    zcash_address --> zcash_encoding
+    sapling --> zcash_note_encryption
+    sapling --> zip32
+    sapling --> zcash_spec
+    orchard --> zcash_note_encryption
+    orchard --> zip32
+    orchard --> zcash_spec
+
+    main --> standalone_components
+
+    librustzcash --> protocols
+    protocols --> protocol_components
+```
+
 ## Security Warnings
 
 These libraries are under development and have not been fully reviewed.