add basic readme

.gitignore

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+.emacs-project

README.rst

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+=================================================
+ Semver -- python module for semantic versioning 
+=================================================
+
+Simple module for comparing versions as noted at `http://semver.org/`_.
+
+This module provides just couple of functions, main of which are:
+
+.. doctest::
+
+    >>> import semver
+    >>> semver.compare("1.0.0", "2.0.0")
+    1
+    >>> semver.compare("2.0.0", "1.0.0")
+    -1
+    >>> semver.compare("2.0.0", "2.0.0")
+    0
+    >>> semver.match("2.0.0", ">=1.0.0")
+    True
+    >>> semver.match("1.0.0", ">1.0.0")
+    False