Makefile: move the source to generate the Matroska v5 document in matroska-v5/

Author: robUx4

Makefile

@@ -108,7 +108,7 @@ control_elements4rfc.md: transforms/ebml_schema2markdown4rfc.xsl control_xsd.xml
 $(OUTPUT_MATROSKA).md: matroska/index_matroska.md matroska/diagram.md matroska/matroska_schema_section_header.md ebml_matroska_elements4rfc.md matroska/ordering.md matroska/notes.md matroska/chapters.md matroska/attachments.md matroska/cues.md matroska/streaming.md matroska/tags-precedence.md matroska/matroska_implement.md matroska/matroska_security.md matroska/iana_matroska_ids.md matroska_iana_ids.md matroska_iana.md matroska/iana.md matroska/rfc_backmatter_matroska.md matroska/matroska_annex.md matroska_deprecated4rfc.md
 	cat $^ > $@
 
-$(OUTPUT_MATROSKA5).md: index_matroska5.md matroska5_body.md matroska5_security.md matroska5_iana.md rfc_backmatter_matroska5.md
+$(OUTPUT_MATROSKA5).md: matroska-v5/index_matroska5.md matroska-v5/matroska5_body.md matroska-v5/matroska5_security.md matroska-v5/matroska5_iana.md matroska-v5/rfc_backmatter_matroska5.md
 	cat $^ | sed -e "s/@BUILD_DATE@/$(shell date +'%F')/" \
 	             -e "s/@BUILD_VERSION@/$(OUTPUT_MATROSKA5)/" > $@