feat(docz-utils): export mergeWith and get from lodash@4

#1313

Author: rakannimer

core/docz-utils/src/index.ts

@@ -4,3 +4,5 @@ export * from './imports'
 export * from './jsx'
 export * from './mdast'
 export { format } from './format'
+export { mergeWith } from 'lodash/fp'
+export { get } from 'lodash'