Merge pull request #777 from jturner314/clarify-readme-blas-versions

Clarify versions of BLAS dependencies in README

Author: bluss

README.rst

@@ -81,9 +81,18 @@ provider::
 
     [dependencies]
     ndarray = { version = "0.13.0", features = ["blas"] }
-    blas-src = { version = "0.4.0", default-features = false, features = ["openblas"] }
-    openblas-src = { version = "0.7.0", default-features = false, features = ["cblas", "system"] }
-
+    blas-src = { version = "0.2.0", default-features = false, features = ["openblas"] }
+    openblas-src = { version = "0.6.0", default-features = false, features = ["cblas", "system"] }
+
+For official releases of ``ndarray``, the versions are:
+
+=========== ============ ================
+``ndarray`` ``blas-src`` ``openblas-src``
+=========== ============ ================
+0.13.0      0.2.0        0.6.0
+0.12.\*     0.2.0        0.6.0
+0.11.\*     0.1.2        0.5.0
+=========== ============ ================
 
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