Update indexing-overview.markdown
Update indexing-overview.markdown

Updating XAP.net doc to match XAP doc.
hagaiGS/gigaspaces-wiki-jekyll,barakb/gigaspaces-wiki-jekyll,yohanakh/gigaspaces-wiki-jekyll,kemiz/gigaspaces-wiki-jekyll,barakb/gigaspaces-wiki-jekyll,kemiz/gigaspaces-wiki-jekyll,kemiz/gigaspaces-wiki-jekyll,yohanakh/gigaspaces-wiki-jekyll,hagaiGS/gigaspaces-wiki-jekyll,barakb/gigaspaces-wiki-jekyll,kemiz/gigaspaces-wiki-jekyll,yohanakh/gigaspaces-wiki-jekyll,yohanakh/gigaspaces-wiki-jekyll,barakb/gigaspaces-wiki-jekyll,hagaiGS/gigaspaces-wiki-jekyll,hagaiGS/gigaspaces-wiki-jekyll,kemiz/gigaspaces-wiki-jekyll