remove garbled part of 'registered' url

diff --git a/2021/registered-abk2bvlwswnb/chill/index.html b/2021/registered/chill/index.html
similarity index 100%
rename from 2021/registered-abk2bvlwswnb/chill/index.html
rename to 2021/registered/chill/index.html

diff --git a/2021/registered-abk2bvlwswnb/exhibitors/eff/index.html b/2021/registered/exhibitors/eff/index.html
similarity index 100%
rename from 2021/registered-abk2bvlwswnb/exhibitors/eff/index.html
rename to 2021/registered/exhibitors/eff/index.html

diff --git a/2021/registered-abk2bvlwswnb/exhibitors/index.html b/2021/registered/exhibitors/index.html
similarity index 100%
rename from 2021/registered-abk2bvlwswnb/exhibitors/index.html
rename to 2021/registered/exhibitors/index.html

diff --git a/2021/registered-abk2bvlwswnb/hallway/index.html b/2021/registered/hallway/index.html
similarity index 100%
rename from 2021/registered-abk2bvlwswnb/hallway/index.html
rename to 2021/registered/hallway/index.html

diff --git a/2021/registered-abk2bvlwswnb/index.html b/2021/registered/index.html
similarity index 100%
rename from 2021/registered-abk2bvlwswnb/index.html
rename to 2021/registered/index.html

diff --git a/2021/registered-abk2bvlwswnb/live b/2021/registered/live
similarity index 100%
rename from 2021/registered-abk2bvlwswnb/live
rename to 2021/registered/live

diff --git a/2021/registered-abk2bvlwswnb/workshops/index.html b/2021/registered/workshops/index.html
similarity index 100%
rename from 2021/registered-abk2bvlwswnb/workshops/index.html
rename to 2021/registered/workshops/index.html