Update Dockerfile

Dockerfile

@@ -10,9 +10,11 @@ RUN apt-get install -y python3-opengl
 RUN apt update && apt install -y python3 python3-pip git xvfb xorg-dev cmake
 RUN apt-get upgrade -y && apt-get install -y python3-pip python-is-python3 && rm -rf /var/lib/apt/lists/* 
 RUN pip install -r requirements.txt
-RUN mkdir /projects
+RUN mkdir /code/projects
 RUN git clone https://github.com/glfw/glfw.git /projects/glfw
-RUN cd /projects/glfw
+RUN cd /code/projects/glfw
+
+WORKDIR /code/projects/glfw
 RUN cmake -DBUILD_SHARED_LIBS=ON .
 RUN make
 RUN export PYGLFW_LIBRARY=/projects/glfw/src/libglfw.so