run.sh: add check for config dir

run.sh

@@ -3,6 +3,8 @@
 set -e
 set -x
 
+configdir=$HOME/.config/tgschedpub
+
 DIR="$(dirname "$(realpath "$0")")"
 cd "$DIR"
 
@@ -13,4 +15,13 @@ if [ $install -eq 1 ]; then python3 -m venv .venv; fi
 ./.venv/bin/activate
 if [ $install -eq 1 ]; then pip install -r requirements.txt; fi
 
+[ -d "$configidr" ] || {
+  >&2 echo "error: config directory does not exists"
+  exit 1
+}
+[ -f "$configdir/config.yaml" ] || {
+  >&2 echo "error: $configdir/config.yaml does not exists"
+  exit 1
+}
+
 ./tgschedpub.py "$@"