Updated .readme file.

README.md

@@ -1,2 +1,41 @@
 # convert-pdf-img
-Convert .ppt, .pptx, .odp and .key to pdf or/and image
+
+Converts `.ppt,` `.pptx`, `.odp` and `.key` to `pdf or/and image(png, jpg, jpeg)`
+
+## Dependencies
+
+Please install libreoffice, imagemagick and might required ghostscript for Mac os
+
+## Usage Example
+
+// Import convert module
+const document = require("./convert");
+
+// `.ppt,` `.pptx`, `.odp` and `.key` to pdf and/or image convert options
+const options = {
+libreofficeBin: "C:\\Program Files\\LibreOffice\\program\\soffice.exe", // This is optional if it is null it will find default installation path inn your OS
+sourceFile: "C:\\convert-pdf-img\\sample.pptx",
+outputDir: "C:\\convert-pdf-img\\abc",
+img: true,
+imgExt: "jpg",
+reSize: 800,
+density: 120,
+};
+
+// Document (`.ppt,` `.pptx`, `.odp` and `.key`) to pdf and/or image convert options
+
+const options = {
+libreofficeBin: "C:\\Program Files\\LibreOffice\\program\\soffice.exe", // This is optional if it is null it will find default installation path inn your OS
+sourceFile: "C:\\convert-pdf-img\\sample.pdf",
+outputDir: "C:\\convert-pdf-img\\",
+img: true,
+imgExt: "jpg",
+reSize: 800,
+density: 120,
+};
+
+// Convert document to pdf and/or image
+document.convert(options, (err, res) => {
+if (err) console.log(err.message);
+console.log(res);
+});