Indexing and storage: Implement suggestions from code review

Author: matriv

docs/feature/storage/indexing-and-storage.md

@@ -29,14 +29,14 @@ documents. We will look at the three main Lucene structures that are used
 within CrateDB: Inverted indexes for text values, BKD trees for numeric
 values, and doc values.
 
-:Inverted index: You will learn how inverted indexes are implemented in Lucene
-and CrateDB, and how they are used for indexing text values.
+:Inverted index: Understand how inverted indexes are implemented in Lucene
+and how CrateDB uses them to index text values and enable fast text searches.
 
-:BKD tree: Better understand the BKD tree, starting from KD trees, and how this
+:BKD tree: Understand the BKD tree, starting from KD trees, and how this
 data structure supports range queries on numeric values in CrateDB.
 
 :Doc values: This data structure supports more efficient querying document
-fields by id, performs column-oriented retrieval of data, and improves the
+fields by name, performs column-oriented retrieval of data, and improves the
 performance of aggregation and sorting operations.
 
 ## Indexing text values