add docs for `/api/embeddings`

docs/api.md

@@ -8,6 +8,7 @@
 - [Copy a model](#copy-a-model)
 - [Delete a model](#delete-a-model)
 - [Pull a model](#pull-a-model)
+- [Generate embeddings](#generate-embeddings)
 
 ## Conventions
 
@@ -220,3 +221,36 @@ curl -X POST http://localhost:11434/api/pull -d '{
   "total": 2142590208
 }
 ```
+
+## Generate Embeddings
+
+```
+POST /api/embeddings
+```
+
+Generate embeddings from a model
+
+### Parameters
+
+- `model`: name of model to generate embeddings from
+- `prompt`: text to generate embeddings for
+
+### Request
+
+```
+curl -X POST http://localhost:11434/api/embeddings -d '{
+  "model": "llama2:7b",
+  "prompt": "Here is an article about llamas..."
+}'
+```
+
+### Response
+
+```json
+{
+  "embeddings": [
+    0.5670403838157654, 0.009260174818336964, 0.23178744316101074, -0.2916173040866852, -0.8924556970596313,
+    0.8785552978515625, -0.34576427936553955, 0.5742510557174683, -0.04222835972905159, -0.137906014919281
+  ]
+}
+```