Add README.md (mostly a disclaimer)

README.md

@@ -0,0 +1,16 @@
+# Pastebincl
+
+## DISCLAIMER
+
+This is an old project, archived here as it is still linked on
+[pastebin](https://pastebin.com) as of now (2018-04-27). I **do not recommand
+using it anymore**. I don't remember very well its code, nor did I looked back
+at it, but as far as I can see in a glance, this code is overly complicated and
+quite ugly.
+
+If I wanted to write the same kind of thing today, I would most certainly
+write a 100 lines long python script for the same result :)
+
+## Compiling
+
+See `COMPILE.txt`, and please forgive my stupid younger self :)