rearrange folder placement (#78)

PR updates the upload script to place directories in this manner:
(example)
`s3://rapidsai-docs/${PROJECT}/${FORMAT}/${RAPIDS_VERSION_NUMBER}`

as opposed to the former arrangement:

`s3://rapidsai-docs/${PROJECT}/${RAPIDS_VERSION_NUMBER}/${FORMAT}`

PROJECT - `cudf`, `rmm`, etc
FORMAT - `html`, `txt`
RAPIDS_VERSION_NUMBER - `23.10`, `23.12`, etc

tools/rapids-upload-docs

@@ -24,11 +24,6 @@ checks() {
     exit 1
   fi
 
-  if [[ "${RAPIDS_BUILD_TYPE}" != "pull-request" ]]; then
-    echo "DOCS UPLOADS FOR BRANCH/NIGHTLIES HAVE BEEN TEMPORARILY HALTED"
-    exit 0
-  fi
-
   if [[ "${GITHUB_ACTIONS:-false}" != "true" ]]; then
     echo "Uploading docs from local builds is not supported."
     echo "The docs are in ${RAPIDS_DOCS_DIR}."
@@ -49,7 +44,7 @@ get_s3_dest() {
       return
       ;;
     branch|nightly)
-      echo -n "s3://rapidsai-docs/${PROJECT}/${RAPIDS_VERSION_NUMBER}/${FORMAT}"
+      echo -n "s3://rapidsai-docs/${PROJECT}/${FORMAT}/${RAPIDS_VERSION_NUMBER}"
       return
       ;;
     *)