Spelling fix in conversion filter page

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Provided by Michael Slusarz (slusarz@gmail.com)

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@335018 c90b9560-bf6c-de11-be94-00142212c4b1
Fixed discrepancy in the example (Compiling PECL extensions)

Patch by Костя Третяк

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@335019 c90b9560-bf6c-de11-be94-00142212c4b1
Add CDATA

Patch by Костя Третяк

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@335020 c90b9560-bf6c-de11-be94-00142212c4b1
Link to useful page

Patch by Костя Третяк

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@335021 c90b9560-bf6c-de11-be94-00142212c4b1
Error on Nginx install page

Patch by Костя Третяк

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@335022 c90b9560-bf6c-de11-be94-00142212c4b1
fix comment to reflect the actual doc entry title

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Patch by Claudio Galdiolo (claudio.galdiolo@gmail.com)

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@335023 c90b9560-bf6c-de11-be94-00142212c4b1