Update `pkgPathFor` template helper example in docs.
This change adds double-quoting around the package identifier (which is
required for the helper) and drops the outer quoting in an attempt to
not confuse a reader with too many nested double quotes.
@@ -145,7 +145,7 @@ Returns the uppercase equivalent of the given string literal.
Returns the absolute filepath to the package directory of the package best resolved from the given package identifier. The `pkgPathFor` helper will only resolve against dependent packages of the package the template belongs to - in other words, you will always get what you expect and the template won't leak to other packages on the system.
- export JAVA_HOME="{{pkgPathFor core/jdk8}}"
+ export JAVA_HOME={{pkgPathFor "core/jre8"}}
### toJson Helper
