Add requirement to fetch behave source code and update readme (#262)

* Add requirement to fetch behave source code and update readme

* Simplify tests section

* Change dockerfile to fetch requirements.txt

Author: algochoi

Dockerfile

@@ -7,7 +7,7 @@ WORKDIR $HOME/py-algorand-sdk
 
 # SDK dependencies, and source version of behave with tag expression support
 RUN pip install . -q \
-    && pip install git+https://github.com/behave/behave -q
+    && pip install -r requirements.txt -q
 
 # Run integration tests
 CMD ["/bin/bash", "-c", "make unit && make integration"]

README.md

@@ -14,7 +14,14 @@ Alternatively, choose a [distribution file](https://pypi.org/project/py-algorand
 
 ## SDK Development
 
-Run tests with `make docker-test`
+Install dependencies
+* `pip install -r requirements.txt`
+
+Run tests
+* `make docker-test`
+
+Format code:
+* `black .`
 
 ## Quick start
 

requirements.txt

@@ -1,2 +1,3 @@
 .
-black==21.9b0
+black==21.9b0
+git+https://github.com/behave/behave