#7 update readme

Author: skn-036

README.md

@@ -1,22 +1,29 @@
 # express-pdf-generator
+
 Using typescript and puppeteer, a pdf file generator with options to add header footer and watermark in every page.
 
 # env variables
+
 APP_URL=Base url to the file paths
 
 # request url
+
 http://127.0.0.1:5000/generate-pdf
 
 # request method
+
 POST
 
 # request paramaters
+
 absoute path to the header image file with respect to base url. for example, for a url https://picsum.photos/800/300, APP_URL in env file should be 'https://picsum.photos' and the header will be '/800/300'
 
 ```javascript
 type RequestParams = {
-    header?: string; // absout path to the header image.
-    body?: string; // html content of the pdf body
-    footer?: string; // absout path to the footer image.
-    watermark?: string; // absout path to the watermark image.
+    header?: string, // absoute path to the header image.
+    body?: string, // html content of the pdf body
+    footer?: string, // absoute path to the footer image.
+    watermark?: string, // absoute path to the watermark image.
+    original_cv?: string, // absoute path to the watermark image.
 };
+```