mention 5.2.10

Author: pbauer

README.txt

@@ -116,6 +116,7 @@ We support the following versions of Plone:
 - `6.0.0a3 <https://raw.githubusercontent.com/starzel/buildout/6.0.0a3/linkto/base.cfg>`_ (Python 3)
 - `6.0.0a2 <https://raw.githubusercontent.com/starzel/buildout/6.0.0a2/linkto/base.cfg>`_ (Python 3)
 - `6.0.0a1 <https://raw.githubusercontent.com/starzel/buildout/6.0.0a2/linkto/base.cfg>`_ (Python 3)
+- `5.2.10 <https://raw.githubusercontent.com/starzel/buildout/5.2.10/linkto/base.cfg>`_ (Python 2 and 3)
 - `5.2.9 <https://raw.githubusercontent.com/starzel/buildout/5.2.9/linkto/base.cfg>`_ (Python 2 and 3)
 - `5.2.8 <https://raw.githubusercontent.com/starzel/buildout/5.2.8/linkto/base.cfg>`_ (Python 2 and 3)
 - `5.2.7 <https://raw.githubusercontent.com/starzel/buildout/5.2.7/linkto/base.cfg>`_ (Python 2 and 3)