typo fixed

base/doc/ltnews35.tex

@@ -166,7 +166,7 @@ \section{Document metadata interface}
 available to everybody without the need to load a special package
 using \cs{RequirePackage}. The actual processing, though, is external
 so that we can easily extend the code (e.g., offering additional keys
-or changing the internal processing) why the above mentioned project
+or changing the internal processing) while the above mentioned project
 is progressing. Both together allows users to immediately benefit from
 intermediate results produced as part of the project, as well as
 offering the \LaTeX{} Project Team the flexibility to enable such