Removing the requirements.txt from docs building dependencies (#3527)

Author: petyaslavova

.readthedocs.yml

@@ -3,7 +3,6 @@ version: 2
 python:
   install:
     - requirements: ./docs/requirements.txt
-    - requirements: requirements.txt
 
 build:
   os: ubuntu-20.04

doctests/README.md

@@ -13,11 +13,11 @@ See https://github.com/redis-stack/redis-stack-website#readme for more details.
 ## How to test examples
 
 Examples are standalone python scripts, committed to the *doctests* directory. These scripts assume that the
-```requirements.txt``` and ```dev_requirements.txt``` from this repository have been installed, as per below.
+```doctests/requirements.txt``` and ```dev_requirements.txt``` from this repository have been installed, as per below.
 
 ```bash
-pip install -r requirements.txt
 pip install -r dev_requirements.txt
+pip uninstall -y redis  # uninstall Redis package installed via redis-entraid
 pip install -r doctests/requirements.txt
 ```
 

doctests/requirements.txt

@@ -3,3 +3,4 @@ pandas
 requests
 sentence_transformers
 tabulate
+redis #install latest stable version