DOC: Typo fixed "it" should be "is"
This patch was proposed in GitHub PR #1415.
Reviewed-by: Tim Duesterhus <tim@bastelstu.be>
diff --git a/doc/configuration.txt b/doc/configuration.txt
index d90c39e..20c0f74 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -12528,7 +12528,7 @@
it is possible to evaluate some conditions to decide whether this session
must be accepted or dropped or have its counters tracked. Those conditions
cannot make use of any data contents because no buffers are allocated yet and
- the processing cannot wait at this stage. The main use case it to copy some
+ the processing cannot wait at this stage. The main use case is to copy some
early information into variables (since variables are accessible in the
session), or to keep track of some information collected after the handshake,
such as SSL-level elements (SNI, ciphers, client cert's CN) or information