improved readme

README.mdown

@@ -2,7 +2,10 @@ Jedi - a clever Python auto-completion
 ============================
 
 ** This is just a work-in-progress README. The auto-completion is not yet
-finished (and the README neither :-)) **
+finished (and the README neither :-)) The completion is currently in a
+pre-alpha state and needs serious testing, as well as some features. If you
+really want to try it, you can, but I won't be very supportive, just wait 1-2
+months more. **
 
 Jedi is an autocompletion tool for Python. It should always work as good as
 possible. It should provide completion wherever it is possible.
@@ -42,13 +45,13 @@ nice in Python 2. To keep things simple, some things have been held back:
  - Exceptions are only looked at in the form of `Exception as e`, no comma!
 
 Syntax Errors and other strange stuff, that is defined differently in the
-Python language, may lead to undefined behaviour of the completion. Jedi is **NOT**
-a Python compiler, that tries to correct you. It is a tool that wants to help
-you. But **YOU** have to know Python, not Jedi.
+Python language, may lead to undefined behaviour of the completion. Jedi is
+**NOT** a Python compiler, that tries to correct you. It is a tool that wants
+to help you. But **YOU** have to know Python, not Jedi.
 
 Importing `numpy` can be quite slow sometimes, as well as loading the builtins
 the first time. If you want to speed it up, you could write import hooks in
-jedi, which preload this stuff. However, once loaded, this is not a problem
+jedi, which preloads this stuff. However, once loaded, this is not a problem
 anymore.
 
 From time to time Jedi might feel terribly slow. This behaviour is known, when