doc: Clarify location and content of xblock token keys (#26259)
doc: Clarify location and content of xblock token keys (#26259)


angelapper/edx-platform,stvstnfrd/edx-platform,stvstnfrd/edx-platform,eduNEXT/edunext-platform,arbrandes/edx-platform,edx/edx-platform,edx/edx-platform,angelapper/edx-platform,EDUlib/edx-platform,eduNEXT/edx-platform,stvstnfrd/edx-platform,EDUlib/edx-platform,arbrandes/edx-platform,eduNEXT/edunext-platform,eduNEXT/edx-platform,edx/edx-platform,EDUlib/edx-platform,angelapper/edx-platform,arbrandes/edx-platform,angelapper/edx-platform,eduNEXT/edunext-platform,EDUlib/edx-platform,eduNEXT/edx-platform,arbrandes/edx-platform,edx/edx-platform,eduNEXT/edunext-platform,stvstnfrd/edx-platform,eduNEXT/edx-platform