docs: update doc/README.md

doc/README.md

@@ -1,43 +1,19 @@
 ## Instructions for Documentation
 
-There are different possible configurations when building the docs:  
+Scripts to build the documentation can be found at https://github.com/boostorg/release-tools/tree/master/build_docs
 
-Option 1. Start out with single boost library, such as the one in this repository. A new boost-root directory is generated for you, next to the current repo, (in the location ../boost-root)  and the docs are output to ../boost-root/libs/_name-of-this-repo_/doc/html  
+For example on a Linux system, copy the file `linuxdocs.sh` into the current directory and run it.
 
-or  
-
-Option 2. You have already set up boost-root. The repo has already been placed in boost-root/libs/_name-of-this-repo_, and that's where you run the build. In that case, the docs are output in the current directory, such as _name-of-this-repo_/doc/html.  The existing boost-root is used.  
-
-Either of the above choices are possible. The build scripts detect if they are being run from a boost-root or not.
-
-In order to build the documentation, refer to the appropriate sections below:
-
-## Linux
-
-Run the linuxdocs.sh script which can be found in the doc/tools directory: 
 ```
-tools/linuxdocs.sh
+./linuxdocs.sh
 ```
 
-
-## Mac OSX
-
-Run the osxdocs.sh script which can be found in the doc/tools directory:
-```
-tools/osxdocs.sh
-```
-
-## Windows
-
-Run the powershell script windowsdocs.ps1 which can be found in the doc/tools directory:
-```
-.\tools\windowsdocs.ps1
-```
+The QuickBook or AsciiDoc files are compiled into html format.
 
 ## Help Card
 
 To edit the Help Card in `HelpCard.org`, use LibreOffice Draw and install the
 following fonts:
 
 - [Cairo](https://fonts.google.com/specimen/Cairo)
-- [M+ 1M](https://www.fontsquirrel.com/fonts/m-1m)
+- [M+ 1M](https://www.fontsquirrel.com/fonts/m-1m)