📝 update Ollama embeddings docs

Author: sestinj

docs/docs/walkthroughs/codebase-embeddings.md

@@ -82,13 +82,13 @@ We also support other methods of generating embeddings, which can be configured
 
 ### Ollama
 
-[Ollama](https://ollama.ai) is the easiest way to get up and running with open-source language models. It provides an entirely local REST API for working with LLMs, including generating embeddings. The embeddings generated are slightly larger, with a size of 4096 for `codellama:7b`.
+[Ollama](https://ollama.ai) is the easiest way to get up and running with open-source language models. It provides an entirely local REST API for working with LLMs, including generating embeddings. We recommend using an embeddings model like `nomic-embed-text`:
 
 ```json title="~/.continue/config.json"
 {
   "embeddingsProvider": {
     "provider": "ollama",
-    "model": "codellama:7b",
+    "model": "nomic-embed-text",
     "apiBase": "http://localhost:11434" // optional, defaults to http://localhost:11434
   }
 }