improve the README a bit

README.md

@@ -1 +1 @@
-As of October 2019 the pooling implementation in the [`psycopg2.pool`](http://initd.org/psycopg/docs/pool.html) module is flawed: it doesn't really keep connections open, so it doesn't reduce latency at all when more than one connection is needed. This issue was first reported in 2017 in <https://github.com/psycopg/psycopg2/issues/563>, and a fix was proposed in <https://github.com/psycopg/psycopg2/pull/565>, but that fix wasn't merged. A rebased and improved version of the patch was proposed in <https://github.com/psycopg/psycopg2/pull/974>, but so far it hasn't been merged either. So, I'm releasing a proper pool implementation as a separate package.
+As of October 2019 the pooling implementation in the [psycopg2.pool](http://initd.org/psycopg/docs/pool.html) module is flawed: it doesn't really keep connections open, so it doesn't reduce latency at all when more than one connection is needed. This issue was first reported in 2017 in [psycopg/psycopg2#563](https://github.com/psycopg/psycopg2/issues/563), and a fix was proposed in [psycopg/psycopg2#565](https://github.com/psycopg/psycopg2/pull/565), but that fix wasn't merged. I submitted a rebased and improved version of the patch in [psycopg/psycopg2#974](https://github.com/psycopg/psycopg2/pull/974), but so far it hasn't been merged either. So, I'm releasing my work as a separate package.