fixed update script

update.sh

@@ -6,10 +6,12 @@ dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 
 cd "${dir}"
 
+node=/home/tmont/.nvm/versions/node/v12.16.2/bin/node
+PATH="$PATH:$(dirname "${node}")"
+
 if ! which node > /dev/null; then
-	#. /home/tmont/.nvm/nvm.sh
-	nvm use
-	yarn install --production --non-interactive --pure-lockfile
+    echo "node not available"
+    exit 1
 fi
 
 if [[ ! -d "./COVID-19" ]]; then