init docs: correct a punctuation typo

Signed-off-by: Kyle Meyer <kyle@kyleam.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-init.txt

@@ -132,7 +132,7 @@ The template directory will be one of the following (in order):
 The default template directory includes some directory structure, suggested
 "exclude patterns" (see linkgit:gitignore[5]), and sample hook files.
 
-The sample hooks are all disabled by default, To enable one of the
+The sample hooks are all disabled by default. To enable one of the
 sample hooks rename it by removing its `.sample` suffix.
 
 See linkgit:githooks[5] for more general info on hook execution.