Fixed typo on metadata.xml example
-rw-r--r-- 13 .gitignore
-rw-r--r-- 502 Makefile
drwxr-xr-x - appendices
drwxr-xr-x - archs
-rw-r--r-- 27072 devbook.xsl
-rw-r--r-- 4186 devmanual.css
drwxr-xr-x - ebuild-writing
drwxr-xr-x - eclass-reference
drwxr-xr-x - eclass-writing
drwxr-xr-x - function-reference
drwxr-xr-x - general-concepts
drwxr-xr-x - hosted-projects
drwxr-xr-x - icons
drwxr-xr-x - keywording
drwxr-xr-x - profiles
drwxr-xr-x - quickstart
drwxr-xr-x - tasks-reference
-rw-r--r-- 1706 text.xml
drwxr-xr-x - tools-reference
drwxr-xr-x - xsl