Add a README with some details.

README.md

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+# pgloader
+
+`pgloader` is a client side data loader for
+[PostgreSQL](http://www.postgresql.org/). It knows how to find erroneous
+rows in your input so that the good ones are loaded in the database and the
+bad ones accumulated in a *reject file* for later processing.
+
+`pgloader` supports `CSV` file format, *fixed sized* file format and *text*
+file format with some advanced parsing options so as to be able to read
+*Informix* `UNLOAD` output.
+
+`pgloader` implements many interesting features such as column reformating
+in python, user defined constant columns, column repamming between file and
+database table, and some more: have a look at the tutorial.
+
+## complete tutorial
+
+See [pgloader tutorial](http://tapoueh.org/pgsql/pgloader.html) for a
+complete tutorial explaining in details how to setup and use pgloader.
+
+## credits
+
+pgloader is sponsored by [2ndQuadrant](http://www.2ndquadrant.com/), we
+offer commercial support and training if you need professional help.