Update embeddings description with "nomath" controls

I have added a vocabulary and GloVe embedding with all mathematics from the data discarded/ignored.

They have been used to evaluate the specific contribution of the math lexemes to statement classification models. I'm pushing all resources out before submitting a write-up for that experiment.

resources/arxmliv-embeddings-082018.md

@@ -22,7 +22,7 @@ articles, the right of distribution was only given (or assumed) to arXiv itself.
   - An 11.5 billion token model for the arXMLiv 08.2018 dataset, including subformula lexemes
     - `token_model.zip`
   - 300 dimensional GloVe word embeddings for the arXMLiv 08.2018 dataset
-    - `glove.arxmliv.5B.300d.zip` and `vocab.arxmliv.zip`
+    - `glove.arxmliv.11B.300d.zip` and `vocab.arxmliv.zip`
   - 300d GloVe word embeddings for individual subsets
     - `glove.subsets.zip`
   - Embeddings and vocabulary with math lexemes omitted