Sunho final fix

Dockerfile

@@ -8,6 +8,9 @@ COPY requirements.txt /Users/terminal-fragment-selector/requirements.txt
 COPY requirements_dev.txt /Users/terminal-fragment-selector/requirements_dev.txt
 
 ##### INSTALL #####
+RUN apt-get update \
+&& apt-get install gcc -y \
+&& apt-get clean
 RUN pip install -r /Users/terminal-fragment-selector/requirements.txt
 RUN pip install -r /Users/terminal-fragment-selector/requirements_dev.txt