Tor Browser import doc: add missing calls to "git annex sync"

These calls are not strictly needed but they help every member
of this small git-annex conspiracy to track what is where.

wiki/src/contribute/release_process/tor-browser.mdwn

@@ -211,7 +211,8 @@ Commit and push your changes
 	cd "${TBB_ARCHIVE:?}" && \
 	git commit -m "Add Tor Browser ${TBB_VERSION:?}." && \
 	git annex sync && \
-	git annex copy --to origin -- "${TBB_VERSION:?}"
+	git annex copy --to origin -- "${TBB_VERSION:?}" && \
+	git annex sync
 
 Wait for the synchronization
 ----------------------------
@@ -245,5 +246,6 @@ Clean up
 
 	cd "${TBB_ARCHIVE:?}" && \
 	git annex drop -- "${TBB_VERSION:?}" && \
+    git annex sync && \
     rm -rf "${DL_DIR:?}" && \
     rm "${TAILS_GIT_REPO:?}"/sha256sums-unsigned-build.txt{,.asc}