diff --git a/README.md b/README.md
index 7e386e5..bfb1f3a 100755
--- a/README.md
+++ b/README.md
@@ -1,2 +1,43 @@
-# parser_from_rossko
+# Parser of products from [rossko.ru](https://krsk.rossko.ru)
 
+* Saves products from an excel file with products sent to email from [rossko.ru](https://krsk.rossko.ru) in SQlite3
+* Downloads images directly from the [rossko.ru](https://krsk.rossko.ru) website for all products
+* Generates excel documents formatted for the [drom.ru](https://drom.ru) and [avito](https://avito.ru) trading platforms with the added reseller markup
+
+## Installation
+
+### NGINX
+1. Example of NGINX server file
+```nginx
+location / {
+    try_files $uri $uri/ /index.php;
+}
+
+# Excel-files
+location ~ /(?<type>drom|avito)(?<file>/avaiable|/order)?$ {
+    root /var/www/parser_from_rossko/mirzaev/parser_from_rossko/system/storage/$type$file;
+    add_header Content-Disposition "attachment; filename=$type.xlsx";
+    try_files /export.xlsx =404;
+}
+
+# Images
+location ~ /(?<nomenclature>[A-z0-9]+)/(?<image>[0-9]+\.[jJ][pP][gG])$ {
+    root /var/www/parser_from_rossko/mirzaev/parser_from_rossko/system/storage/images/$nomenclature;
+    add_header Content-Disposition "attachment; filename=$image";
+    try_files  /$image =404;
+}
+
+location ~ \.php$ {
+    ...
+}
+```
+
+2. Issue yourself an SSL/TLS certificate using Certbot: `sudo certbot --nginx`
+
+
+### SystemD (or any alternative you like)
+
+1. Execute: `sudo cp rossko.service /etc/systemd/system/rossko.service`
+
+*before you execute the command think about **what it does** and whether the **paths** are specified correctly*<br>
+*the configuration file is very simple and you can remake it for any alternative to SystemD that you like*
diff --git a/mirzaev/parser_from_rossko/system/public/import.php b/mirzaev/parser_from_rossko/system/public/import.php
index 05b049a..7570738 100644
--- a/mirzaev/parser_from_rossko/system/public/import.php
+++ b/mirzaev/parser_from_rossko/system/public/import.php
@@ -141,7 +141,7 @@ if (!empty($document) ?? file_exists($document)) {
 		$response = $client->send($request);
 
 		// Инициализация изображений
-		$images = json_decode((string) $response->getBody(), true)['mainPart']['images'];
+		$images = json_decode((string) $response->getBody(), true)['mainPart']['images'] ?? null;
 
 		foreach ($images ?? [] as $image) {
 			// Перебор изображений