[gnome-builder] doc: fix path to html directory

[Christian Hergert <chergert src gnome org>]

commit 43feb70bcfa819195edfd096c36d801a3429dd00
Author: Christian Hergert <chergert redhat com>
Date:   Tue Mar 14 00:41:08 2017 -0700

    doc: fix path to html directory

 doc/Makefile.am |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 47aded7..40ace4f 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -61,9 +61,9 @@ dist-hook:
        rm -rf html ; $(SPHINX_BUILD) "$(top_srcdir)/doc" "$(distdir)/html"
 
 install-data-hook:
-       if test -d "$(srcdir)/html"; then                  \
-               $(MKDIR_P) "$(DESTDIR)$(docdir)/html" ;    \
-               cp -a html/* "$(DESTDIR)$(docdir)/html/" ; \
+       if test -d "$(srcdir)/html"; then                            \
+               $(MKDIR_P) "$(DESTDIR)$(docdir)/html" ;              \
+               cp -a $(srcdir)/html/* "$(DESTDIR)$(docdir)/html/" ; \
        fi
 
 GITIGNOREFILES = _build