docs: fix typos

(cherry picked from commit 1fce73b)

Author: salim-b

docs/extensions/project-types.qmd

@@ -127,7 +127,7 @@ format:
     toc: true
 ```
 
-Users of the template will naturally change the default `title`, and can add whatever other project, website, or format level options they require (these options will be merged with the defaults provided by the extension).
+Users of the template will naturally change the default `title`, and can add whatever other project-, website-, or format-level options they require (these options will be merged with the defaults provided by the extension).
 
 ## Markdown Publishing
 
@@ -221,4 +221,4 @@ formats:
       - docusaurus.lua
 ```
 
-A project type for any given markdown publishing system will have its own variant, and will often also require a filters to deal with non-standard constructs and other vagaries of the target system.
+A project type for any given markdown publishing system will have its own variant, and will often also require filters to deal with non-standard constructs and other vagaries of the target system.