Fix nightly docs build script (#1305)

This updates the s3 docs build to copy the generated html files from the correct folder. PR also updates the sphinx buildername flag.

Authors:
   - Jake Awe (https://github.com/AyodeAwe)

Approvers:
   - AJ Schmidt (https://github.com/ajschmidt8)

build.sh

@@ -456,5 +456,5 @@ if hasArg docs; then
     cd ${DOXYGEN_BUILD_DIR}
     doxygen Doxyfile
     cd ${SPHINX_BUILD_DIR}
-    sphinx-build -b dirhtml source _html
+    sphinx-build -b html source _html
 fi

ci/docs/build.sh

@@ -51,4 +51,4 @@ for PROJECT in ${PROJECTS[@]}; do
     rm -rf "$DOCS_WORKSPACE/api/$PROJECT/$BRANCH_VERSION/"*
 done
 
-mv "$PROJECT_WORKSPACE/docs/build/html/"* "$DOCS_WORKSPACE/api/raft/$BRANCH_VERSION"
+mv "$PROJECT_WORKSPACE/docs/_html/"* "$DOCS_WORKSPACE/api/raft/$BRANCH_VERSION"