Merge branch 'fix-docker-deps' into 'main'

Fix docker error involving missing deps

Closes #1

See merge request open-rit/tex2html!1

Dockerfile

@@ -3,7 +3,7 @@ FROM ubuntu:18.04
 LABEL maintainer="Suhas CV sc4817@rit.edu"
  
 RUN apt-get update -y && \
-    apt-get install -y python-pip python-dev latexml
+    apt-get install -y python-pip python-dev latexml libtext-unidecode-perl zip
 
 COPY . /app
 COPY templates /app/templates