Added section about setup on windows to README.md

Explained line ending issue in kibana/entrypoint.sh on windows.

README.md

@@ -29,6 +29,23 @@ For example on Redhat and CentOS, the following will apply the proper context:
 .-root@centos ~
 -$ chcon -R system_u:object_r:admin_home_t:s0 docker-elk/
 ````
+## Windows
+
+When cloning this repo on Windows with line ending conversion enabled (git option `core.autocrlf` set to `true`), the script `kibana/entrypoint.sh` will malfunction due to a corrupt shebang header (which must not terminated by `CR+LF` but `LF` only):
+
+````bash
+...
+Creating dockerelk_kibana_1
+Attaching to dockerelk_elasticsearch_1, dockerelk_logstash_1, dockerelk_kibana_1
+: No such file or directory/usr/bin/env: bash
+````
+
+So you have to either
+
+* disable line ending conversion *before* cloning the repository by setting `core.autocrlf` set to `false`: `git config core.autocrlf false`, or
+* convert the line endings in script `kibana/entrypoint.sh` from `CR+LF` to `LF` (e.g. using Notepad++).
+
+See [issue 36](../../issues/36) for details.
 
 # Usage