udpates readme with license info

Author: Shazwazza

build/Readme.txt

@@ -24,4 +24,42 @@ default values applied when they are not specified:
 *   extensions = comma seperated list of file extensions that our PDFs have
     the default is ".pdf"
 *   umbracoFileProperty = the property of the media type that contains files
-	the default is "umbracoFile"
+	the default is "umbracoFile"
+
+*****************************************************************************
+MANUAL INSTALLATION
+*****************************************************************************
+
+To add this to your site, drop the files from this zip file in the bin folder.
+
+You'll need to add a new Indexer & Searcher to ~/Config/ExamineSettings.config
+called: "PDFIndexer" & "PDFSearcher"
+
+	<add name="PDFIndexer"
+           type="UmbracoExamine.PDF.PDFIndexer, UmbracoExamine.PDF"
+           extensions=".pdf"
+           umbracoFileProperty="umbracoFile" />
+  
+	<add name="PDFSearcher"
+         type="UmbracoExamine.UmbracoExamineSearcher, UmbracoExamine" />
+
+and add a new Index Set to ~/Config/ExamineIndex.config called "PDFIndexSet":
+
+	<IndexSet SetName="PDFIndexSet" IndexPath="~/App_Data/TEMP/ExamineIndexes/PDFs" />
+
+*****************************************************************************
+LICENSE
+*****************************************************************************
+
+The source code for UmbracoExamine.PDF is licensed under the MIT license. 
+The license to use iTextSharp is licensed under the AGPL license. 
+See their license information for full details: 
+https://github.com/itext/itextsharp/blob/master/LICENSE.md
+
+According to iText if you use this software in a closed source scenario, 
+you will need to procure a commercial license of iText:
+
+> In case you application is MIT licensed and iText is an add-on you are 
+> entitled to use the iText AGPL version for this application. 
+> In case a third party integrates your open source application into a 
+> closed source application, he/she will have to procure a commercial license of iText.