Rename option name

Author: Ynote

README.md

@@ -177,7 +177,7 @@ var rawDraftJSObject = markdownToDraft(markdownString, {
       ...
     }
   },
-  remarkableSingletons: ['atomic_block']
+  remarkableStandaloneBlocks: ['atomic_block']
 });
 
 ```

src/markdown-to-draft.js

@@ -102,7 +102,7 @@ const DefaultBlockStyles = {
 };
 
 // Remarkable blocks that stands alone.
-const DefaultRemarkableSingletons = [
+const DefaultRemarkableStandaloneBlocks = [
   'hr',
   'fence'
 ]
@@ -235,7 +235,7 @@ function markdownToDraft(string, options = {}) {
   const BlockTypes = Object.assign({}, DefaultBlockTypes, options.blockTypes || {});
   const BlockEntities = Object.assign({}, DefaultBlockEntities, options.blockEntities || {});
   const BlockStyles = Object.assign({}, DefaultBlockStyles, options.blockStyles || {});
-  const RemarkableSingletons = DefaultRemarkableSingletons.concat(options.remarkableSingletons)
+  const RemarkableStandaloneBlocks = DefaultRemarkableStandaloneBlocks.concat(options.remarkableStandaloneBlocks)
 
   parsedData.forEach(function (item) {
     // Because of how remarkable's data is formatted, we need to cache what kind of list we're currently dealing with
@@ -261,7 +261,7 @@ function markdownToDraft(string, options = {}) {
 
       // The entity map is a master object separate from the block so just add any entities created for this block to the master object
       Object.assign(entityMap, blockEntities);
-    } else if ((itemType.indexOf('_open') !== -1 || RemarkableSingletons.includes(itemType)) && BlockTypes[itemType]) {
+    } else if ((itemType.indexOf('_open') !== -1 || RemarkableStandaloneBlocks.includes(itemType)) && BlockTypes[itemType]) {
       var depth = 0;
       var block;
 

test/markdown-to-draft.spec.js

@@ -554,7 +554,7 @@ describe('markdownToDraft', function () {
           }
         }
       },
-      remarkableSingletons: ['yaml_frontmatter']
+      remarkableStandaloneBlocks: ['yaml_frontmatter']
     });
 
     expect(conversionResult.blocks[0].type).toEqual('atomic');