A number of changes to the join page (#798)
A number of changes to the join page (#798)

* Update join.html

adding my suggested edits

* Update join.html

fix typo

* Update join.html

adding pad of pads

* Update join.html

adding slack link

k8hertweck/website,ErinBecker/website,swcarpentry/website,rgaiacs/swc-website,ErinBecker/website,k8hertweck/website,ErinBecker/website,ErinBecker/website,rgaiacs/swc-website,gvwilson/website,gvwilson/website,gvwilson/website,ErinBecker/website,rgaiacs/swc-website,k8hertweck/website,swcarpentry/website,swcarpentry/website,gvwilson/website,gvwilson/website,swcarpentry/website,rgaiacs/swc-website,swcarpentry/website,k8hertweck/website,rgaiacs/swc-website,k8hertweck/website