typos

doc/index.rst

@@ -210,8 +210,8 @@ The expansion of "ZODB" is the Z Object Database.  But, of course, we
 usually just use "ZODB".
 
 In the past, it was the Zope Object Database, because it was
-developed at part of the Zope project.  But ZODB doesn't depend on
-Zope in any way and is used my many projects that have nothing to do
+developed as part of the Zope project.  But ZODB doesn't depend on
+Zope in any way and is used in many projects that have nothing to do
 with Zope.
 
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