DOC: fix typos
s/accidently/accidentally/
s/any ot these messages/any of theses messages/
s/catched/caught/
s/completly/completely/
s/convertor/converter/
s/desribing/describing/
s/developper/developer/
s/eventhough/even though/
s/exectution/execution/
s/functionnality/functionality/
s/If it receive a/If it receives a/
s/In can even/It can even/
s/informations/information/
s/it will be remove /it will be removed /
s/langage/language/
s/mentionned/mentioned/
s/negociated/negotiated/
s/Optionnaly/Optionally/
s/ouputs/outputs/
s/outweights/outweighs/
s/ressources/resources/
diff --git a/doc/intro.txt b/doc/intro.txt
index 0379119..a60844c 100644
--- a/doc/intro.txt
+++ b/doc/intro.txt
@@ -1481,7 +1481,7 @@
Apache is the de-facto standard HTTP server. It's a very complete and modular
project supporting both file serving and dynamic contents. It can serve as a
-frontend for some application servers. In can even proxy requests and cache
+frontend for some application servers. It can even proxy requests and cache
responses. In all of these use cases, a front load balancer is commonly needed.
Apache can work in various modes, some being heavier than others. Certain
modules still require the heavier pre-forked model and will prevent Apache from