typos on the document

jenkin => jenkins
 on ci.md
documention => documentation
 on developer/caches.html
typicallly => typically
 on developer/developing_elements.html
Closes-Bug: #1476993

Change-Id: Ie40205debad5dbc6074e65672e0f3ebeaee5b08e

doc/source/ci.md

@@ -11,7 +11,7 @@ Jenkins
 * IRC notification service, notify-only on #triple on freenode, port 7000 ssl.
 * Github OAuth plugin, permit all from tripleo organisation, and organisation
   members as service admins.
-* Grant jenkin builders sudo [may want lxc containers or cloud instances for
+* Grant jenkins builders sudo [may want lxc containers or cloud instances for
   security isolation]
 * Jobs to build:
  * base ubuntu VM.

doc/source/developer/caches.rst

@@ -4,7 +4,7 @@ Caches and offline mode
 Since retrieving and transforming operating system image files, git
 repositories, Python or Ruby packages, and so on can be a significant overhead,
 we cache many of the inputs to the build process in ~/.cache/image-create/. The
-writing an element documention describes the interface within
+writing an element documentation describes the interface within
 disk-image-builder for caching. When invoking disk-image-builder the --offline
 option will instruct disk-image-builder to not refresh cached resources.
 

doc/source/developer/developing_elements.rst

@@ -267,7 +267,7 @@ comma-delimited string. Some examples:
 Images are built such that the Linux kernel is instructed not to switch into
 graphical consoles (i.e. it will not activate KMS). This maximises
 compatibility with remote console interception hardware, such as HP's iLO.
-However, you will typicallly only see kernel messages on the console - init
+However, you will typically only see kernel messages on the console - init
 daemons (e.g. upstart) will usually be instructed to output to a serial
 console so nova's console-log command can function. There is an element in the
 tripleo-image-elements repository called "remove-serial-console" which will