Start cleaning up NetPGP build documentation

doc/build-macos.md

@@ -3,7 +3,7 @@ This file is part of the pEp Engine
 This file may be used under the terms of the Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) License
 See CC_BY-SA.txt -->
 
-# Build instructions for macOS Sierra and iOS
+# Build instructions for macOS Sierra
 
 # Installing packaged dependencies
 

doc/build-netpgp.md

@@ -1,7 +1,15 @@
 # Using NetPGP instead of GnuPG
 ## Prepare
 
-Get OpenSSL and build/install it as shared library.
+Get OpenSSL:
+curl -O https://www.openssl.org/source/openssl-1.1.0f.tar.gz
+
+Build it using the openssl-for-ios build script:
+git clone https://github.com/sinofool/build-openssl-ios/ .
+
+
+
+ and build/install it as shared library.
 
 ```
 wget https://www.openssl.org/source/old/1.0.1/openssl-1.0.1u.tar.gz