Copyright for tesseract source package in Sid

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: tesseract-ocr
Upstream-Contact: Ray Smith 
Source: https://github.com/tesseract-ocr/

Files: *
Copyright: 1988-1995 Hewlett Packard Company.
           2006-2019 Google Inc.
License: Apache-2.0

Files: debian/*
Copyright: 2007-2009 Jeffrey Ratcliffe 
           2010-2019 Jeff Breidenbach 
           2010-2019 Alexander Pozdnyakov 
License: Apache-2.0

License: Apache-2.0
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the license at
 .
    http://www.apache.org/licenses/LICENSE-2.0
 .
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 .
 On Debian systems, the complete text of the Apache 2.0 license can be
 found in the file
 `/usr/share/common-licenses/Apache-2.0`.