Added docker file

.gitignore

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+MFRC522.pyc

Dockerfile

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+FROM armv7/armhf-ubuntu
+RUN apt-get update && apt-get install -y \
+    python \
+    python-dev \
+    python-pip \
+    python-virtualenv \
+    python-setuptools \
+    gcc-multilib \
+    git \
+    ssh \
+    --no-install-recommends \
+    && pip install --upgrade pip \
+    && pip install wheel
+WORKDIR /usr/app
+COPY requirements.txt /usr/app
+RUN pip install -r requirements.txt
+COPY . /usr/app
+CMD python Read.py

requirements.txt

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+RPi.GPIO==0.6.3
+-e git+https://github.com/lthiery/SPI-Py.git#egg=spi-pi