adds link from overview to clean page

README.md

@@ -4,11 +4,11 @@ Deep Learning and Logic Reasoning from Data and Knowledge.
 
 [Project Overall](docs/semint-overall.md)
 
-[Install FAQ](docs/install.md)
-
 [DB Repair Notebook](https://nbviewer.jupyter.org/urls/bitbucket.org/semint/spike.ltn/raw/master/notebooks/db-reparing.ipynb)
 
-[Docker files](docker/usage.md)
+[Usage with Docker files](docker/usage.md)
+
+[PIP Install Problems FAQ](docs/install.md)
 
 ## References
 

docs/semint-overall.md

@@ -114,3 +114,7 @@ Once given the overall conceptual schema described in ORM notation ther is a sta
 ## Query
 
 Once exported to a new database data could be queried using standard SQL query and analytical tools.
+
+It is a requirement to have clean data source to get valuable results. A lot of tools are dedicated to this time consuming and critical preprocessing phase of data preparation.
+
+We propose a novel data cleaning solution based on [Logic Tensor Network technology](semint-clean.md).
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