Fix indent of authorarchive.sty and add latexindent config

.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.yaml]
+indent_size = 4

.gitignore

@@ -1,5 +1,5 @@
 llncs.cls
-
+*.bak?
 
 # Created by https://www.gitignore.io/api/tex,macos,windows
 

README.md

@@ -9,6 +9,7 @@
   * [Boolean Switches](#boolean-switches)
   * [Key/Value Options](#keyvalue-options)
 - [Embedding Bibliography Entries](#embedding-bibliography-entries)
+- [Development](#development)
 - [Alternative Packages](#alternative-packages)
 - [License](#license)
 
@@ -80,6 +81,11 @@ In case any of these file exist in the current directory, it gets embedded in th
 
 You can generate these files by using [JabRef's export functionalities](https://help.jabref.org/en/#importexport).
 
+## Development
+You can fix the indent of `authorarchive.sty` by using [latexindent](https://ctan.org/pkg/latexindent) as follows:
+
+    latexindent -l -s -sl -w authorarchive.sty
+
 ## Alternative Packages
 The package [coverpage](https://ctan.org/pkg/coverpage) prepends a separate PDF page before the first page of the paper.
 That page contains the bibliographic information as BibTeX entry.
@@ -90,7 +96,6 @@ The package [llncsconf](https://github.com/adbrucker/llncsconf) is a light-weigh
 It supports [LNCS](http://www.springer.com/de/it-informatik/lncs) only.
 In comparison to `authorarchive`, it provides support for the additional publication states "intended-to-submit" and "submitted", but no QR code and links to the author's archive URL.
 
-
 ## License
 If not otherwise stated, all sub-projects are dual-licensed under a
 2-clause BSD-style license and/or the LPPL version 1 or any later 

localSettings.yaml

@@ -0,0 +1,28 @@
+indentPreamble: 1
+defaultIndent: '  '
+maxNumberOfBackUps: 9
+modifyLineBreaks:
+    preserveBlankLines: 1
+    condenseMultipleBlankLinesInto: 0
+    oneSentencePerLine:
+        manipulateSentences: 1
+        removeSentenceLineBreaks: 0
+        sentencesFollow:
+            par: 1
+            blankLine: 1
+            fullStop: 1
+            exclamationMark: 1
+            questionMark: 1
+            rightBrace: 1
+            commentOnPreviousLine: 1
+            other: 0
+        sentencesBeginWith:
+            A-Z: 1
+            a-z: 0
+            other: 0
+        sentencesEndWith:
+            basicFullStop: 0
+            betterFullStop: 1
+            exclamationMark: 1
+            questionMark: 1
+            other: '(?:\.\)(?!\h*[a-z]))|(?:(?<!(?:(?:e\.g)|(?:i\.e)|(?:etc))))\.(?!(?:[a-z]|[A-Z]|\-|\,|\.|[0-9]))'