Use initial-tree-cache to reduce initial load timeinitial-tree-cache

1 files changed, 13 insertions, 6 deletions

diff --git a/src/README.md b/src/README.md
index 5c88b2e..cc10e08 100644
--- a/src/README.md
+++ b/src/README.md
@@ -14,9 +14,16 @@
     -   **IconButton.vue**:    Simple button component containing an SVG icon.
     -   **SCollapsible.vue**:  Simple collapsible-content component.
     -   **icon**:              Contains components that display SVG icons.
--   **tol.ts**:    Holds types for tree-of-life data.
--   **layout.ts**: Holds code for laying out tiles.
--   **lib.ts**:    Holds project-wide globals.
--   **util.ts**:   Holds utility functions.
--   **index.css**: Included by main.ts. Provides Tailwind's CSS classes.
--   **env.d.ts**:  From Vite's template files.
+-   **tol.ts**:            Holds types for tree-of-life data.
+-   **layout.ts**:         Holds code for laying out tiles.
+-   **lib.ts**:            Holds project-wide globals.
+-   **util.ts**:           Holds utility functions.
+-   **index.css**:         Included by main.ts. Provides Tailwind's CSS classes.
+-   **initialTrees.json**: Cache of initial tree data from server. Used to reduce load time.
+
+    Holds a map from tree names (trimmed, images, picked) to the result of querying the
+    backend dev server at `http://localhost:8000/data/?type=node&tree=TREE_NAME`.
+
+    Usage can be disabled by replacing `import initialTrees from ...;` in App.vue with
+    `const initialTrees = null;`.
+-   **env.d.ts**:          From Vite's template files.