chore: attempt to fix citation key error,

Author: purva-thakre

docs/content/contributing-guide.md

@@ -175,7 +175,8 @@ function follows the formatting specifications in [Code Style](#code-style). A s
 def my_new_function(some_parameter: parameter_type) -> return_type:
     r"""One liner description of the new function.
 
-    Detailed description of the function, citing relevant papers where appropriate [@johnston2014counting].
+    Detailed description of the function, citing relevant papers where 
+    appropriate, for example: `[@johnston2014counting]`.
 
     Examples:
         Demonstrate how the function works with expected output.
@@ -195,15 +196,16 @@ def my_new_function(some_parameter: parameter_type) -> return_type:
     """
 ```
 
-Use `\(\)` for inline math and `\[\]` for display math in docstrings.
-Use `[@citation_key]` for citations in docstrings (e.g., `[@johnston2014counting]`).
+Use `\(\)` for inline math and `\[\]` for display math in docstrings. To cite an entry in `refs.bib`, 
+use, for example, use <code>[johnston2014counting]</code> with an `@` before `johnston` to cite in the docstring. 
 
 To add an attribution to a paper or a book, add your reference with
 `some_ref` as the citation key to `docs/content/refs.bib`. All references in
 `refs.bib` are arranged alphabetically according to the first author's
 last name. Take a look at the [existing
 entries](https://github.com/vprusso/toqito/blob/master/docs/content/refs.bib) to
 get an idea of how to format the `bib` keys.
+
 ## Documentation
 
 We use [MkDocs](https://www.mkdocs.org/) with