Pull request 2128: 6585-imp-readme

Closes #6585.

Squashed commit of the following:

commit 903079b2c91ce84e66c368565808251dcf7a16a6
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Mon Jan 15 17:48:51 2024 +0300

    all: fix typo

commit 232083a8b29d030758c2db91f26c214cdd8cfc93
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date:   Mon Jan 15 17:45:24 2024 +0300

    all: imp docs

README.md

@@ -276,6 +276,15 @@ Open your terminal and execute these commands:
 git clone https://github.com/AdguardTeam/AdGuardHome
 cd AdGuardHome
 make
+```
+
+  #### <a href="#building-node" id="building-node" name="building-node">Building with Node.js 17 and later</a>
+
+In order to build AdGuard Home with Node.js 17 and later, specify
+`--openssl-legacy-provider` option.
+
+```sh
+export NODE_OPTIONS=--openssl-legacy-provider
 ```
 
 **NOTE:**  The non-standard `-j` flag is currently not supported, so building