diff --git a/.gitignore b/.gitignore
index b6e4761..bacafd5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -127,3 +127,6 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+
+#venv
+myenv
diff --git a/README.md b/README.md
index 336c4b5..c742c1b 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,20 @@ Create a ChatGPT like experience over your custom docs using [LangChain](https:/
 
 See [this blog post](https://blog.langchain.dev/tutorial-chatgpt-over-your-data/) for a more detailed explanation.
 
+## Virtual Environment
+
+`python -m venv myenv`
+
+`source myenv/bin/activate`
+
+## Install Dependencies
+
+`pip install -r requirements.txt`
+
+## Open API Key
+
+`export OPENAI_API_KEY="..."`
+
 ## Ingest data
 
 Ingestion of data is done over the `state_of_the_union.txt` file. 
diff --git a/requirements.txt b/requirements.txt
index 5a9fe7b..c5f19fc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ openai
 unstructured
 faiss-cpu
 gradio
+tiktoken