Update v2-1.md

website/docs/usage/v2-1.md

@@ -10,11 +10,11 @@ menu:
 
 spaCy v2.1 has focussed primarily on stability and performance, solidifying the
 design changes introduced in [v2.0](/usage/v2). As well as smaller models,
-faster runtime, and many bug-fixes, v2.1 also introduces experimental support
+faster runtime, and many bug fixes, v2.1 also introduces experimental support
 for some exciting new NLP innovations. For the full changelog, see the
 [release notes on GitHub](https://github.com/explosion/spaCy/releases/tag/v2.1.0).
 
-### BERT/ULMFit/Elmo-style pre-training
+### BERT/ULMFit/Elmo-style pre-training {tag="experimental"}
 
 > #### Example
 >
@@ -115,33 +115,6 @@ or `POS` for finding sequences of the same part-of-speech tags.
 
 </Infobox>
 
-### Components and languages via entry points
-
-> #### Example
->
-> ```python
-> from setuptools import setup
-> setup(
->     name="custom_extension_package",
->     entry_points={
->         "spacy_factories": ["your_component = component:ComponentFactory"]
->         "spacy_languages": ["xyz = language:XYZLanguage"]
->    }
-> )
-> ```
-
-Using entry points, model packages and extension packages can now define their
-own `"spacy_factories"` and `"spacy_languages"`, which will be added to the
-built-in factories and languages. If a package in the same environment exposes
-spaCy entry points, all of this happens automatically and no further user action
-is required.
-
-<Infobox>
-
-**Usage:** [Using entry points](/usage/saving-loading#entry-points)
-
-</Infobox>
-
 ### Retokenizer for merging and splitting
 
 > #### Example
@@ -169,6 +142,33 @@ deprecated.
 
 </Infobox>
 
+### Components and languages via entry points
+
+> #### Example
+>
+> ```python
+> from setuptools import setup
+> setup(
+>     name="custom_extension_package",
+>     entry_points={
+>         "spacy_factories": ["your_component = component:ComponentFactory"]
+>         "spacy_languages": ["xyz = language:XYZLanguage"]
+>    }
+> )
+> ```
+
+Using entry points, model packages and extension packages can now define their
+own `"spacy_factories"` and `"spacy_languages"`, which will be added to the
+built-in factories and languages. If a package in the same environment exposes
+spaCy entry points, all of this happens automatically and no further user action
+is required.
+
+<Infobox>
+
+**Usage:** [Using entry points](/usage/saving-loading#entry-points)
+
+</Infobox>
+
 ### Improved documentation
 
 Although it looks pretty much the same, we've rebuilt the entire documentation
@@ -210,6 +210,12 @@ if all of your models are up to date, you can run the
 
 </Infobox>
 
+- Due to difficulties linking our new
+  [`blis`](https://github.com/explosion/cython-blis) for faster
+  platform-independent matrix multiplication, this nightly release currently
+  **doesn't work on Python 2.7 on Windows**. We expect this to be corrected in
+  the future.
+
 - While the [`Matcher`](/api/matcher) API is fully backwards compatible, its
   algorithm has changed to fix a number of bugs and performance issues. This
   means that the `Matcher` in v2.1.x may produce different results compared to