Add chromedriver binary + optimize the speed of building

Author: mdraevich

Dockerfile

@@ -1,14 +1,21 @@
 FROM python:3.8.4-buster
 
-WORKDIR /docs-scraper
-
-COPY . .
-
 ENV LC_ALL C.UTF-8
 ENV LANG C.UTF-8
 
+WORKDIR /docs-scraper
+
 RUN apt-get update -y \
-    && apt-get install -y python3-pip libnss3
+    && apt-get install -y python3-pip libnss3 \
+    && apt-get install -y chromium-driver
 
 RUN pip3 install pipenv
+
+
+COPY Pipfile Pipfile
+COPY Pipfile.lock Pipfile.lock 
+
 RUN pipenv --python 3.8 install
+
+
+COPY . .