Docs: Update Xapiand build process (xapian-core included)
Docs: Update Xapiand build process (xapian-core included)

Kronuz/Xapiand,Kronuz/Xapiand,Kronuz/Xapiand,Kronuz/Xapiand,Kronuz/Xapiand,Kronuz/Xapiand