Add requirements-dev.txt (#116)

Author: sansiro77

README.md

@@ -60,6 +60,8 @@ cd deepquantum
 pip install -e .
 # or use tsinghua source
 pip install -e . -i https://pypi.tuna.tsinghua.edu.cn/simple
+# for developers
+pip install -r requirements-dev.txt
 ```
 
 # Getting Started

pyproject.toml

@@ -49,8 +49,8 @@ classifiers = [
 [project.optional-dependencies]
 dev = ['pytest',
        'perceval-quandela',
-       'strawberryfields @ git+https://github.com/XanaduAI/strawberryfields.git@master',
-       'thewalrus @ git+https://github.com/XanaduAI/thewalrus.git@master',
+       'strawberryfields',
+       'thewalrus',
        'graphix==0.3.1']
 
 [project.urls]

requirements-dev.txt

@@ -0,0 +1,5 @@
+pytest
+perceval-quandela
+strawberryfields @ git+https://github.com/XanaduAI/strawberryfields.git@master
+thewalrus @ git+https://github.com/XanaduAI/thewalrus.git@master
+graphix==0.3.1