apdf 6.0.0 metadata update (#897)

index/ap/apdf/apdf-6.0.0.toml

@@ -10,6 +10,40 @@ project-files = ["pdf_out_gnat_w_gid.gpr"]
 executables = ["pdf_out_demo", "koch_curve", "sierpinski_arrowhead_curve"]
 tags = ["pdf", "adobe"]
 
+long-description = """
+
+**PDF_Out** is an Ada package for producing easily and automatically PDF files, from an Ada program, with text, vector graphics and raster graphics.
+
+![Ada PDF Screenshot](https://apdf.sourceforge.io/pw_ari_parcel_m.png "Screenshot of a page produced by PDF_Out")
+
+* Ideal for the dynamic production of reports, invoices, tickets, charts, maps etc.
+* Vector graphics
+* Inclusion of JPEG images
+* Object oriented
+* Task safe
+* Endian-neutral
+* Multi-platform, but native code build
+* Standalone (no dependency on other libraires, bindings, etc.; no extra component needed for running)
+* Unconditionally portable code: OS-, CPU-, compiler- independent code
+* Pure Ada 95: this package can be used in projects in Ada 95, Ada 2005, Ada 2012 and later language versions
+* Free, open-source 
+
+The creation of a PDF file is as simple as this small procedure:
+
+```ada
+with PDF_Out;
+
+procedure Small_Demo is
+  pdf : PDF_Out.PDF_Out_File;
+begin
+  pdf.Create ("small.pdf");
+  pdf.Put_Line ("This is a very small demo for PDF_Out...");
+  pdf.Close;
+end Small_Demo;
+```
+
+"""
+
 [gpr-externals]
 PDF_Build_Mode = ["Debug", "Fast"]