render.py: fix typo (#5206)

scripts/pdf/render.py

@@ -117,7 +117,7 @@ def main(loc, colorscheme):
 if __name__ == "__main__":
 
     # Parsing the arguments
-    parser = argparse.ArgumentParser(prog="tdlr-pages-to-PDF", description="A Python script to generate a single PDF document with all the `tldr` pages.")
+    parser = argparse.ArgumentParser(prog="tldr-pages-to-pdf", description="A Python script to generate a single PDF document with all the `tldr` pages.")
     parser.add_argument("dir_path", help = "Path to the 'pages' directory")
     parser.add_argument("-c", "--color", choices=["solarized-light", "solarized-dark", "basic"], default="basic", help="Color scheme of the PDF")
     args = parser.parse_args()