diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -2,40 +2,42 @@
 
 ## Description
 A CLI tool to create a valid BagIt SIP for SLUBArchiv. 
-As a user, you have three options `copy` `move` or `replace` to create your SIP. 
-These options are based on payload files, which would be saved in data directory of your bag.
-NOTE: use option `copy` if you are not sure how to restore your payload files, when something goes wrong!
+As a user, you have three options to create your SIP: `copy`, `move` or `replace`.
+NOTE: The use of option `copy` is strongly recommended. The other options modify your source directory, please use this with caution!
 
 ## Operating Systems
 * Windows 10 (NOTE: check if UTF-8 flag set at `Systemadministration/TimeAndRegion/Region/Administration/AreaPattern`, if you want to use such characters as äöüÄÖÜß)
 * Debian 10
 
 ## Requirements
-* Perl version 5.28 or higher, as all necessary modules required
-* Module Archive::BagIt::Base 0.065 or higher
+* Perl version 5.28 or higher
+* cpan or cpanm
+* several CPAN modules such as Archive::BagIt::Base (0.065 or higher)
 
 ## Three ways to install a module
 * with cpan `cpan Archive::BagIt`
-* with cpanm `cpanm Archive::BagIt` (NOTE: `cpan App::cpanminus` must be installed). To force installation run `cpanm -i -f Archive::BagIt`.
-* manual as downloaded package
-  1. Download for example Archive-BagIt-0.065.tar.gz from [metacpan Archive::BagIt](https://metacpan.org/pod/Archive::BagIt)
-  2. Extract it with `tar zxf Archive-BagIt-0.065.tar.gz` and go to project dir with `cd in Archive-BagIt-0.065`
+* with cpanm `cpanm Archive::BagIt` (NOTE: `cpan App::cpanminus` must be installed).
+* from source (Linux)
+  1. Download for example Archive-BagIt-0.067.tar.gz from [metacpan Archive::BagIt](https://metacpan.org/pod/Archive::BagIt)
+  2. Extract it with `tar zxf Archive-BagIt-0.067.tar.gz` and go to project dir with `cd in Archive-BagIt-0.067`
   3. Run `perl Makefile.pl`
   4. `(d)gmake`
   5. `(d)gmake test`
   6. `(d)gmake install`
-  7. with `cpanm Archive::BagIt` test for version. Result will be something like `Archive::BagIt is up to date (0.065)`.
+  7. with `cpanm Archive::BagIt` test for the version. Result will be something like `Archive::BagIt is up to date (0.067)`.
   
 ## Module deinstallation
+Using cpanm is recommended for an assisted and clean uninstall.
 1. `cpan App::cpanminus` must be installed.
 2. Run `cpanm --uninstall Archive::BagIt`
 
 ## Documentation
-* RECOMMENDED: Windows 10 perl environment [strawberry-perl-5.30.3.1-64bit-portable](http://strawberryperl.com/releases.html)
+* RECOMMENDED for Windows 10: strawberry perl environment [strawberry-perl-5.30.3.1-64bit-portable](http://strawberryperl.com/releases.html)
+(includes `cpanm` with many preinstalled CPAN modules)
 * Project based on BagIt 1.0 specification, visit [RFC8493](https://tools.ietf.org/html/rfc8493) 
-* Some valid Bag examples based on operation system look at `export_dir_kitodo/bagit/lin_*` or `export_dir_kitodo/bagit/win_*`
-* Specification of creating a SLUB SIP you can find at [SLUBArchiv_Produzenten_SIP_Spezifikation.pdf](https://slubarchiv.slub-dresden.de/technische-standards-fuer-die-ablieferung-von-digitalen-dokumenten/)
-* For rights coding specification visit [SLUBArchiv_Produzenten_Rechteauszeichnung.pdf](https://slubarchiv.slub-dresden.de/technische-standards-fuer-die-ablieferung-von-digitalen-dokumenten/)
+* For valid SIP examples based on operating system please have a look at `export_dir_kitodo/bagit/lin_*` or `export_dir_kitodo/bagit/win_*`
+* Specification for creating a SLUBArchiv SIP [SLUBArchiv_Produzenten_SIP_Spezifikation.pdf](https://slubarchiv.slub-dresden.de/technische-standards-fuer-die-ablieferung-von-digitalen-dokumenten/)
+* SLUBArchiv rights coding specification [SLUBArchiv_Produzenten_Rechteauszeichnung.pdf](https://slubarchiv.slub-dresden.de/technische-standards-fuer-die-ablieferung-von-digitalen-dokumenten/)
 
 ### Explanation
 ##### Usage
@@ -122,7 +124,7 @@ EXAMPLES
 ```
 
 ##### Tests
-* Start scipt in project directory to run all tests properly. 
+* Start script in project directory to run all tests properly.
 * NOTE: while running tests path `tmp/bagit` will be created.
 ```perl
 perl -I lib/ t/slubsipbuilderbagit.t