fix: env variable (#193)

Author: vijayg10

nginx/start.sh

@@ -4,6 +4,9 @@ fi
 if [[ ! -z "${AUTH_ENABLED}" ]]; then
     find /usr/share/nginx/html -type f -name "*.*" -exec sed -i -e "s|TTK_AUTH_ENABLED|$AUTH_ENABLED|g" {} \;
 fi
+if [[ ! -z "${PAYER_SIM_BRAND_ICON}" ]]; then
+    find /usr/share/nginx/html -type f -name "*.*" -exec sed -i -e "s|TTK_PAYER_SIM_BRAND_ICON|$PAYER_SIM_BRAND_ICON|g" {} \;
+fi
 if [[ ! -z "${PAYEE_SIM_BRAND_ICON}" ]]; then
     find /usr/share/nginx/html -type f -name "*.*" -exec sed -i -e "s|TTK_PAYEE_SIM_BRAND_ICON|$PAYEE_SIM_BRAND_ICON|g" {} \;
 fi