Revert "Update README.md"

Was meant to go to pipeline_uni branch

This reverts commit e173103.

tools/py/pipeline/README.md

@@ -1,38 +1,7 @@
-This Versa pipeline library provides  a toolkit for constructing data transformation pipelines for Versa models.
+Versa pipeline
+==============
 
-# Overview and example
-
-A Versa pipeline transforms one graph's patterns and vocabularies to another, based on a set of declared rules for pattern matching and output graph construction.
-
-Take the following pair of graphs:
-
-![Black Star graph](http://gonzaga.ogbuji.net/~uche/tech/2021/blackstar1.jpg)
-
-The left hand side is the input graph, based on the [Black Star test example](https://raw.githubusercontent.com/uogbuji/versa/pipeline_uni/test/resource/schemaorg/blackstar.md), which is based on [Schema.org MusicAlbum](https://schema.org/MusicAlbum). The right hand is the output graph, based on the [MusicBrainz schema](https://musicbrainz.org/doc/MusicBrainz_Database/Schema).
-
-Here is the input graph in Versa literate format:
+Tools for constructing data transformation pipelines for Versa models
 
 ```
-<!-- 
-# @docheader
-
-* @iri:
-    * @base: http://example.org/records/
-    * @schema: https://schema.org/
-
-# black-star [MusicAlbum]
-
-* name: Mos Def & Talib Kweli Are Black Star
-* byArtist: <md>
-* byArtist: <tk>
-* release:
-    * catalogNumber: RWK 1158-2
-
-# md [Person]
-
-* name: Mos Def
-
-# tk [Person]
-
-* name: Talib Kweli
-* ```
+```