Add text embeddings description

README.md

@@ -52,9 +52,13 @@ Image Classification, Zero-shot and few-shot Classification.
 
 ## Dataset Contents
 
-```​
+```
 /dataset/
     catalog.parquet
+    embeddings/
+      txt_emb.npy
+      txt_emb_species.json
+      txt_emb_species.npy
     metadata/
         Darwin-finches.csv
         eol_metadata/
@@ -69,6 +73,9 @@ Image Classification, Zero-shot and few-shot Classification.
             source=gbif/
 ```
 
+The `embeddings/` directory contains the [BioCLIP 2](https://huggingface.co/imageomics/bioclip-2) text embeddings; `_species` indicates these are for all 190,988,120 images with full taxonomic labels in the TreeOfLife-200M dataset.
+
+
 To avoid republishing existing datasets or interfering with original data source providers' ability to track use of their data, we provide all metadata here with step-by-step reproduction instructions in the [GitHub repository](https://github.com/Imageomics/TreeOfLife-toolbox/tree/main/docs#treeoflife200m-dataset-download-guide) to download the images and recreate the proper webdataset structure. This process will produce a collection of files named `shard-######.tar` in a `train` folder with which to work.
 
 Inside each shard is a collection of images (named `<uuid>.jpg`), for which each has the following files: