add bisignore file and add .md extension to README

.bidsignore

@@ -0,0 +1,13 @@
+# folders
+logs
+input
+tools
+# files
+highspeed-bids.Rproj
+README.md
+requirements.txt
+datacite.yml
+CHANGES
+LICENSE
+highspeed-sequence-parameters.pdf
+.heudiconv

.gitattributes

@@ -3,7 +3,7 @@
 **/.git* annex.largefiles=nothing
 .bidsignore annex.largefiles=nothing
 CHANGES annex.largefiles=nothing
-README annex.largefiles=nothing
+README.md annex.largefiles=nothing
 code/** annex.largefiles=nothing
 dataset_description.json annex.largefiles=nothing
 highspeed-bids.Rproj annex.largefiles=nothing

README

@@ -1 +1 @@
-TODO: Provide description for the dataset -- basic details about the study, possibly pointing to pre-registration (if public or embargoed)
+TODO: Provide description for the dataset -- basic details about the study, possibly pointing to pre-registration (if public or embargoed)