fix build for now

packages/core/src/index.ts

@@ -0,0 +1,16 @@
+export { Editor, Command, CommandsSpec } from './Editor'
+
+export * from './Extension'
+export * from './NodeExtension'
+export * from './MarkExtension'
+export * from './types'
+
+export { default as nodeInputRule } from './inputRules/nodeInputRule'
+export { default as markInputRule } from './inputRules/markInputRule'
+export { default as markPasteRule } from './pasteRules/markPasteRule'
+
+export { default as getSchema } from './utils/getSchema'
+export { default as generateHTML } from './utils/generateHTML'
+export { default as getHTMLFromFragment } from './utils/getHTMLFromFragment'
+export { default as getMarkAttrs } from './utils/getMarkAttrs'
+export { default as mergeAttributes } from './utils/mergeAttributes'