Fix typo in the "Wrestling mono-repos ..." talk

Change-Id: If947ed121529e41d924a47d17e86f32ac3bc7daf
diff --git a/sessions/wrestling-large-repos.md b/sessions/wrestling-large-repos.md
index 44f5425..a10275c 100644
--- a/sessions/wrestling-large-repos.md
+++ b/sessions/wrestling-large-repos.md
@@ -1,4 +1,4 @@
-# Wrestling large repos with JGit an Gerrit
+# Wrestling large repos with JGit and Gerrit
 
 GerritForge has been focusing in 2022 on improving the scalability and performance of Gerrit with large repositories.