Add CONTRIBUTING.md to master branch

CONTRIBUTING.md

@@ -0,0 +1,88 @@
+# Contributing Code
+
+## How to contribute
+The preferred way to contribute to WaveletsExt.jl is to fork the [main repository](https://github.com/UCD4IDS/WaveletsExt.jl) on Github.
+
+1. *Search or open an [issue](https://github.com/UCD4IDS/WaveletsExt.jl/issues) for this project*:   
+    * Search for and click into a related issue that you would like to contribute to. If the issue has not been assigned to anyone, leave a comment and assign the issue to yourself by clicking on the 'Assignees' button on the right.
+
+    * If no such issues have been raised, open a new issue by clicking on the 'New issue' on the top right corner. Write a brief description of the issue and wait for the feedbacks from core developers before moving on to the next steps.
+
+1. *Fork the [project repository](https://github.com/UCD4IDS/WaveletsExt.jl)*: Click on the 'Fork' button on the top right corner of the page. This creates a copy of the code under your account on the GitHub server. 
+
+1. *Clone this copy to your local disk*: Open up a terminal on your computer, navigate to your preferred directory, and copy the following.
+```
+$ git clone [email protected]:<YourGithubUsername>/WaveletsExt.jl.git
+$ cd WaveletsExt
+```
+
+4. *Instantiate the project*: Open up your Julia REPL, and instantiate the current project in the package manager.
+```
+$ julia
+```
+
+```julia
+julia> ]
+(v1.7) pkg> activate .
+(WaveletsExt) pkg> instantiate
+```
+
+5. *Create a branch to hold your changes*:
+```
+git checkout -b my-feature
+```
+
+6. Work on this copy on your computer using your preferred code editor such as VSCode. Make sure you add the [corresponding tests](https://docs.julialang.org/en/v1/stdlib/Test/) in the `test/` directory where appropriate. Use Git to do the version control. When you're done editing, do the following to record your changes in Git:
+```
+$ git add modified_files
+$ git commit
+```
+
+7. *Push your changes* to Github with:
+```
+$ git push -u origin my-feature
+```
+
+8. Finally, go to the web page of your fork of the WaveletsExt.jl repository, and *click 'Pull request'* to send your changes to the maintainers for review. This will send an email to the committers.
+
+(If any of the above seems like magic to you, then look up the [Git documentation](https://git-scm.com/doc) on the web.)
+
+### Feature contribution notes
+It is recommended to check that your contribution complies with the following rules before submitting a pull request:
+
+- All public methods should have informative docstrings with sample usage presented.
+
+You can also check for common programming errors by testing your code in the package manager mode:
+```julia
+(WaveletsExt) pkg> test
+```
+
+## Filing bugs and feature requests
+We use Github issues to track all bugs and feature requests; feel free to [open an issue](https://github.com/UCD4IDS/WaveletsExt.jl/issues) if you have found a bug or wish to see a feature implemented.
+
+It is recommended to check that your issue complies with the following rules before submitting:
+
+* Verify that your issue is not being currently addressed by other [issues](https://github.com/UCD4IDS/WaveletsExt.jl/issues) or [pull requests](https://github.com/UCD4IDS/WaveletsExt.jl/pulls).
+
+* Please ensure all code snippets and error messages are formatted in appropriate code blocks. See [Creating and highlighting code blocks](https://docs.github.com/en/github/writing-on-github/working-with-advanced-formatting/creating-and-highlighting-code-blocks).
+
+* Please include your Julia and WaveletsExt.jl version. This information can be found by running the following code snippet:
+```julia
+import Pkg
+println("Julia $VERSION")       # Julia version
+Pkg.status("WaveletsExt")       # Package version
+```
+
+## Documentation
+You can edit the documentation using any text editor and then generate the HTML output by doing:
+```
+$ julia --project=docs/ docs/make.jl
+```
+The resulting HTML files will be placed in `docs/build/` and are viewable in a web browser. See the documentation from [Documenter.jl](https://juliadocs.github.io/Documenter.jl/stable/man/guide/) for more information.
+
+*Note: Do not commit any files from the `docs/build/` directory. These webpages will be generated automatically via Github Actions when the commit is merged with the master branch of the project repository.*
+
+*Tip: Generally, only the `docs/make.jl` and the files in `docs/src/` need to be updated.*
+
+## Note
+This document was gleefully borrowed from [librosa](https://librosa.org/doc/latest/index.html) and [scikit-learn](https://scikit-learn.org/stable/).

README.md

@@ -41,7 +41,7 @@ This package is written and maintained by Zeng Fung Liew and Shozen Dan under th
 ## Installation
 The package is part of the official Julia Registry. It can be install via the Julia REPL.
 ```julia
-(@1.6) pkg> add WaveletsExt
+(@1.7) pkg> add WaveletsExt
 ```
 or
 ```julia