Update user_guide.rst

Author: honnix

docs/html/user_guide.rst

@@ -252,7 +252,7 @@ undocumented and unsupported quirks from the previous implementation,
 and stripped constraints files down to being purely a way to specify
 global (version) limits for packages.
 
-The same as requirements files, constraints files can also be served via a URL,
+Same as requirements files, constraints files can also be served via a URL,
 e.g. http://example.com/constraints.txt, so that your organization can store and
 serve them in a centralized place.