[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

source/glossary.rst

@@ -15,7 +15,7 @@ Glossary
     Build Backend
 
         A library that takes a source tree
-        and builds a :term:`source distribution <Source Distribution (or "sdist")>` or 
+        and builds a :term:`source distribution <Source Distribution (or "sdist")>` or
         :term:`built distribution <Built Distribution>` from it.
         The build is delegated to the backend by a
         :term:`frontend <Build Frontend>`.