add docs for installing python deps

README.md

@@ -21,6 +21,7 @@ You will need to clone the repo, and run `web.py`.
 ```
 git clone https://github.com/liamcottle/reticulum-webchat
 cd reticulum-webchat
+pip install -r requirements.txt
 python web.py
 ```
 

requirements.txt

@@ -0,0 +1,4 @@
+lxmf==0.4.3
+rns==0.7.3
+sanic==23.12.1
+websockets==12.0