<head>
a valid head \fIname\fR (i\&.e\&. the contents of $GIT_DIR/refs/heads/<head>)\&.
-.TP
-<snap>
-a valid snapshot \fIname\fR (i\&.e\&. the contents of $GIT_DIR/refs/snap/<snap>)\&.
-
.SH "FILE/DIRECTORY STRUCTURE"
Please see repository layout: \fIrepository-layout.html\fR document\&.
+Read hooks: \fIhooks.html\fR for more details about each hook\&.
+
+
Higher level SCMs may provide and manage additional information in the $GIT_DIR\&.
.SH "TERMINOLOGY"