Merge pull request #840 from discdiver/patch-1

grammar fix in docs (up-to-date instead of up to date)

Author: bashtage

docs/source/index.rst

@@ -9,7 +9,7 @@ pandas-datareader
 
 .. include:: _version.txt
 
-Up to date remote data access for pandas, works for multiple versions of pandas.
+Up-to-date remote data access for pandas. Works for multiple versions of pandas.
 
 
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