Update overview of interacting with Monero

docs/interacting/monerod/reference.md

@@ -97,7 +97,7 @@ The following options define how the API behaves.
 | `--confirm-external-bind`       | Confirm you consciously set `--rpc-bind-ip` to non-localhost IP and you understand the consequences.
 | `--restricted-rpc`              | Restrict API to view only commands and do not return privacy sensitive data. Note this does not make sense with `--rpc-restricted-bind-port` because you would end up with two restricted APIs.
 | `--rpc-login`                   | Specify `username[:password]` required to connect to API. Practical usage seems limited because API communication is in plain text over HTTP.
-| `--rpc-access-control-origins`  | Specify a comma separated list of origins to allow cross origin resource sharing.
+| `--rpc-access-control-origins`  | Specify a comma separated list of origins to allow cross origin resource sharing. This is useful if you want to use `monerod` API directly from a web browser via JavaScript (say in a pure-fronted web appp scenario). With this option `monerod` will put proper HTTP CORS headers to its responses. You will also need to set `--rpc-login` if you use this option. Normally though, the API is used by backend app and this option isn't necessary.
 
 #### Speed nad Reliability
 

docs/interacting/overview.md

@@ -15,7 +15,39 @@ On top of that, Monero nodes interact with each other in a peer-to-peer network.
 Monero project nicely decouples network node logic from wallet logic.
 Wallet logic is offered through three independent user interfaces - the GUI, the CLI, and the HTTP API.
 
-![Monero Directory](/images/monero-dir.png "Monero Unpacked")
+```
+# ---- PDF guide to Monero GUI ----
+
+monero-GUI-guide.pdf
+
+# ---- Executable files -----------
+
+monerod
+
+monero-wallet-cli
+monero-wallet-gui
+monero-wallet-rpc
+
+monero-gen-trusted-multisig
+
+monero-blockchain-export
+monero-blockchain-import
+
+monero-blockchain-blackball
+monero-blockchain-usage
+monero-blockchain-ancestry
+monero-blockchain-depth
+
+start-gui.sh
+
+# ---- Directories ----------------
+
+libs
+plugins
+qml
+```
+
+## Executables - what is what
 
 | Executable                 | Description  
 | -------------------------- |:-----------------------------------------------------------------------------------------------------------------------------------
@@ -28,6 +60,8 @@ Wallet logic is offered through three independent user interfaces - the GUI, the
 | `monero-gen-trusted-multisig` | Tool to generate a set of multisig wallets. <br />See chapter on [multisignatures](/multisignature).
 | `monero-blockchain-blackball` | Advanced tool to mitigate privacy issues related to Monero forks. <br />See the [commit](https://github.com/monero-project/monero/commit/df6fad4c627b99a5c3e2b91b69a0a1cc77c4be14#diff-0410fba131d9a7024ed4dcf9fb4a4e07) and [pull request](https://github.com/monero-project/monero/pull/3322).
 | `monero-blockchain-usage`     | Advanced tool to mitigate privacy issues related to Monero forks. <br />See the [commit](https://github.com/monero-project/monero/commit/0590f62ab64cf023d397b995072035986931a6b4) and the [pull request](https://github.com/monero-project/monero/pull/3322).
+| `monero-blockchain-ancestry`  | Advanced research tool to learn ancestors of a transaction, block or chain. Irrelevant for normal users. See this [pull request](https://github.com/monero-project/monero/pull/4147/files). 
+| `monero-blockchain-depth`     | Advanced research tool to learn depth of a transaction, block or chain. Irrelevant for normal users. See this [commit](https://github.com/monero-project/monero/commit/289880d82d3cb206a2cf4ae67d2deacdab43d4f4#diff-34abcc1a0c100efb273bf36fb95ebfa0).
 
 ## Interacting