Update index.en.adoc

added eeisi/eigor and einvoice-anonymizer

modules/ROOT/pages/index.en.adoc

@@ -66,6 +66,8 @@ link:https://www.ferd-net.de/standards/zugferd/index.html[ZUGFeRD]/Factur-X is a
 
 == Miscellaneous
 * link:http://4s4u.de/additional_data[Additional data] is a python project to support extensions for certain industries like logistics, adding additional information to structured invoices (e.g. the invoice is for kilometres and the additional data contains the amount of miles)
+* Swiss army knife link:https://github.com/AgID/EeISI-mapper/[conversion tool], use e.g. it's commandline tool EIGOR to convert interchangably between CII, UBL and FatturaPA
+* A little python script to link:https://github.com/ZUGFeRD/einvoice-anonymizer[remove personal data from CII] invoices 
 * Philip Helger published a link:https://github.com/phax/en16931-cii2ubl[java library to convert UN/CEFACT CII to UBL]
 * There is a link:https://github.com/jcthiele/OpenXRechnungToolbox[OpenXRechnungToolbox] to visualize and validate XRechnung and Leitweg-IDs
 * There is an interesting link:https://github.com/svanteschubert/en16931-data-extractor[parser] for the EN16931 specification documents