Update blog post link

Without protocol, HF tries to build a relative link.

README.md

@@ -45,7 +45,7 @@ The following models are finetuned on MPT-7B:
 * [MPT-7B-StoryWriter-65k+](https://huggingface.co/mosaicml/mpt-7b-storywriter): a model designed to read and write fictional stories with super long context lengths.
 Built by finetuning MPT-7B with a context length of 65k tokens on a filtered fiction subset of the [books3 dataset](https://huggingface.co/datasets/the_pile_books3).
 At inference time, thanks to [ALiBi](https://arxiv.org/abs/2108.12409), MPT-7B-StoryWriter-65k+ can extrapolate even beyond 65k tokens.
-We demonstrate generations as long as 80k tokens on a single A100-80GB GPU in our [blogpost](www.mosaicml.com/blog/mpt-7b).
+We demonstrate generations as long as 80k tokens on a single A100-80GB GPU in our [blogpost](https://www.mosaicml.com/blog/mpt-7b).
   * License: Apache 2.0
 
 * [MPT-7B-Instruct](https://huggingface.co/mosaicml/mpt-7b-instruct): a model for short-form instruction following.