Update styleguilde.md (#1498)

* Update styleguilde.md

add a note not to say 'just'

* Apply formatting changes

* Rename styleguilde.md to styleguide.md

* Apply formatting changes

* Create slimy-eagles-grow.md

---------

Co-authored-by: eoghanmurray <eoghanmurray@users.noreply.github.com>
Co-authored-by: Justin Halsall <Juice10@users.noreply.github.com>

.changeset/slimy-eagles-grow.md

@@ -0,0 +1,2 @@
+---
+---

docs/styleguide.md

@@ -62,6 +62,7 @@ There are a few style guidelines that aren't covered by the linter rules:
 ## Picking words
 
 - Use "will" over "would" when describing outcomes.
+- Don't use words such as "just" or "simply". If it needs to be explained then it is not self evident.
 
 ## Documentation translations