Fix improper package specification for pip (#4)

Use ``setuptools.find_packages()`` instead of manual package
specification for a proper pip install. non-editable install works now.

Author: Sam Partee

README.md

@@ -89,7 +89,7 @@ Install the Python requirements listed in `requirements.txt`.
 ```bash
 git clone https://github.com/RedisVentures/data-loader.git
 cd redisvl
-pip install -e .
+pip install .
 ```
 
 ### Creating Input Data

setup.py

@@ -1,4 +1,4 @@
-from setuptools import setup
+from setuptools import setup, find_packages
 
 # function to read in requirements.txt to into a python list
 def read_requirements():
@@ -19,7 +19,7 @@ def read_dev_requirements():
     python_requires=">=3.6",
     install_requires=read_requirements(),
     extras_require={"dev": read_dev_requirements()},
-    packages=["redisvl"],
+    packages=find_packages(),
     zip_safe=False,
     entry_points={
         "console_scripts": [