v.1.1.10

What's Changed

• Use md extension by @TilmanGriesel in #78
• Extend es embedding retriever by @TilmanGriesel in #79
• Add nltk by @TilmanGriesel in #77
• Make all parameters optional by @TilmanGriesel in #80
• Update pipeline config by @TilmanGriesel in #81
• Add additional config validation by @TilmanGriesel in #82
• Add additional None type check by @TilmanGriesel in #83

Full Changelog: v1.1.9...v.1.1.10