Edited ch05.asciidoc with Atlas code editor

ch05.asciidoc

@@ -303,7 +303,7 @@ https://dcpos.github.io/bip39/[].
 
 ==== Creating an HD Wallet from the Seed
 
-HD wallets are created from a single _root seed_, which is a 128-, 256-, or 512-bit random number. Most commonly, this seed is generated from a _mnemonic_ as detailed in the previous section. 
+((("wallets", "technology details", "creating HD wallets from root seed")))((("root seeds")))HD wallets are created from a single _root seed_, which is a 128-, 256-, or 512-bit random number. Most commonly, this seed is generated from a _mnemonic_ as detailed in the previous section. 
 
 Every key in the HD wallet is deterministically derived from this root seed, which makes it possible to re-create the entire HD wallet from that seed in any compatible HD wallet. This makes it easy to back up, restore, export, and import HD wallets containing thousands or even millions of keys by simply transferring only the mnemonic that the root seed is derived from.
 
@@ -400,7 +400,7 @@ image::images/mbc2_0511.png["ChildPublicDerivation"]
 
 ==== Using an Extended Public Key on a Web Store
 
-Let's see how HD wallets are used by continuing our story with Gabriel's web store. 
+((("wallets", "technology details", "using extended public keys on web stores")))Let's see how HD wallets are used by continuing our story with Gabriel's web store. 
 
 Gabriel first set up his web store as a hobby, based on a simple hosted Wordpress page. His store was quite basic with only a few pages and an order form with a single bitcoin address.