Update Dockerfile

Dockerfile

@@ -6,7 +6,7 @@ COPY . /src/nitter
 WORKDIR /src/nitter
 
 RUN apk update \
-    && apk add libsass-dev libffi-dev openssl-dev \
+    && apk add libsass-dev libffi-dev openssl-dev redis \
     && nimble build -y -d:release --passC:"-flto" --passL:"-flto" \
     && strip -s nitter \
     && nimble scss
@@ -16,4 +16,4 @@ WORKDIR /src/
 RUN apk --no-cache add pcre-dev sqlite-dev
 COPY --from=nim /src/nitter/nitter /src/nitter/nitter.conf ./
 COPY --from=nim /src/nitter/public ./public
-CMD ./nitter
+CMD redis-server & ./nitter