Add a basic docs as a stopgap measure against user confusion.

TODO: elaborate.

README.md

@@ -1,4 +1,24 @@
+~~~~
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+micropython-lib is highly experimental community project.
+
+Please help to drive it to just "expiremental" state by testing provided
+packages with MicroPython.
+!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+~~~~
+
 micropython-lib
 ===============
 
-Core Python libraries ported to Micro Python
+micropython-lib is a project to develop non-monolothic standard library
+for MicroPython. Each module or package is available as a seprate
+distribution package from PyPI. Modules either written from scratch or
+ported from CPython.
+
+More info:
+ * https://github.com/micropython/micropython/issues/405
+ * http://forum.micropython.org/viewtopic.php?f=5&t=70
+
+Basic guidelines for installing packages from PyPI:
+
+ * https://github.com/micropython/micropython/issues/413