skpkg: add config files for authors, changelog, code of conduct, license

Author: zmx27

AUTHORS.rst

@@ -1,7 +1,7 @@
 Authors
-========
+=======
 
-Billinge Group and community contributors.
+Sangjoon Lee, Simon Billinge, Billinge Group members
 
 Contributors
 ------------

CHANGELOG.rst

@@ -1,70 +1,5 @@
 =============
-Release Notes
+Release notes
 =============
 
 .. current developments
-
-0.1.3
-=====
-
-**Added:**
-
-* Add GitHub action to build wheel, release, upload.
-* Add issue and bug report templates.
-
-**Changed:**
-
-* README file installation instructions updated.
-
-**Fixed:**
-
-* Mathematical error in manual
-
-
-0.1.2
-=====
-
-**Changed:**
-
-* downgraded matplotlib requirement to matplotlib-base
-* updated imports of bg-mpl-stylesheets for latest release of that code
-
-
-
-0.1.1
-=====
-
-
-
-0.1.1
-=====
-
-**Fixed:**
-
-* README title so that it is valid syntax for uploading to PyPi
-
-
-
-0.1.0
-=====
-
-**Added:**
-
-* Add ability to perform multiple morphs in one call using --multiple.
-  * A FILE is morphed against every file in a given DIRECTORY.
-  * Can sort PDFs by some field parameter in the header using --sort-by.
-  * Can also find the field from some serialized metadata file using --serial-file.
-* pdfmorph python function call, which reproduce the application
-
-**Changed:**
-
-* Can now use --verbose tag to limit amount of header information
-
-
-
-v0.0.1
-====================
-
-**Changed:**
-
-* Fixed rever GH address

CODE_OF_CONDUCT.rst

@@ -8,7 +8,7 @@ Our Pledge
 We as members, contributors, and leaders pledge to make participation in our
 community a harassment-free experience for everyone, regardless of age, body
 size, visible or invisible disability, ethnicity, sex characteristics, gender
-identity and expression, level of experience, education, socio-economic status,
+identity and expression, level of experience, education, socioeconomic status,
 nationality, personal appearance, race, caste, color, religion, or sexual
 identity and orientation.
 
@@ -67,7 +67,7 @@ Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
 reported to the community leaders responsible for enforcement at
-sb2896@columbia.edu. All complaints will be reviewed and investigated promptly and fairly.
+simon.billinge@gmail.com. All complaints will be reviewed and investigated promptly and fairly.
 
 All community leaders are obligated to respect the privacy and security of the
 reporter of any incident.

LICENSE.rst

@@ -1,7 +1,6 @@
 BSD 3-Clause License
 
-Copyright (c) 2024, The Trustees of Columbia University
-in the City of New York.
+Copyright (c) 2025, The Trustees of Columbia University in the City of New York.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without