Add title and addressee to the open-letter.md

Author: mariha

open-letter.md

@@ -1 +1,9 @@
+
+  AGAINST **D**ISCRIMINATION \
+  AND OTHER **H**UMAN **R**IGHTS VIOLATIONS \
+  IN **F**REE AND **O**PEN **S**OURCE **S**OFTWARE PROJECTS 
+
+    To the [Council of Europe Commissioner for Human Rights](https://www.coe.int/en/web/commissioner/the-commissioner/mandate)
+
+
 draft: [https://pad.disroot.org/p/letter](https://pad.disroot.org/p/letter)