Add gemget script that downloads Gemini pages

gemget.sh

@@ -0,0 +1,16 @@
+#!/bin/env bash
+set -eu
+set -o pipefail
+
+# Max response size 10MiB
+LOG_LEVEL=debug \
+PRINT_WORKER_STATUS=false \
+DRY_RUN=false \
+NUM_OF_WORKERS=1 \
+WORKER_BATCH_SIZE=1 \
+BLACKLIST_PATH="$(pwd)/blacklist.txt" \
+MAX_RESPONSE_SIZE=10485760 \
+RESPONSE_TIMEOUT=10 \
+PANIC_ON_UNEXPECTED_ERROR=true \
+go run ./bin/gemget/main.go "$@"
+