fix: typo in yarn installation
per documentation, looks like you missed a character
@@ -33,7 +33,7 @@ RUN curl -sL https://deb.nodesource.com/setup_10.x | bash - && \
# - Yarn
RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - && \
- echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.lis && \
+ echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list && \
apt-get install -y yarn
# Install Docker so we can build and publish containers.
