Add mbed developer mirror links to README

Author: Andres AG

README.md

@@ -20,6 +20,12 @@ If your board has no hardware entropy source or its entropy source is not integr
 * [mbed CLI](https://github.com/ARMmbed/mbed-cli) - to build the example program. To learn how to build mbed OS applications with mbed CLI, see the [user guide](https://github.com/ARMmbed/mbed-cli/blob/master/README.md)
 * [Serial port monitor](https://developer.mbed.org/handbook/SerialPC#host-interface-and-terminal-applications).
 
+An alternative to mbed CLI is to use the [mbed Online Compiler](https://developer.mbed.org/compiler/). In this case, you need to import the example projects from [mbed developer](https://developer.mbed.org/) to your mbed Online Compiler session using the links below:
+* [authcrypt](https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-tls-authcrypt)
+* [benchmark](https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-tls-benchmark)
+* [hashing](https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-tls-hashing)
+* [tls-client](https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-tls-tls-client)
+
 ## Building and running the examples
 
 1. Clone the repository containing the collection of examples:

authcrypt/README.md

@@ -6,6 +6,8 @@ This application performs authenticated encryption and authenticated decryption
 
 Set up your environment if you have not done so already. For instructions, refer to the [main readme](../README.md).
 
+You can also compile this example with the [mbed Online Compiler](https://developer.mbed.org/compiler/) by using [this project](https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-tls-authcrypt).
+
 ## Monitoring the application
 
 The output in the terminal window should be similar to this:

benchmark/README.md

@@ -6,6 +6,8 @@ This application benchmarks the various cryptographic primitives offered by mbed
 
 Set up your environment if you have not done so already. For instructions, refer to the [main readme](../README.md).
 
+You can also compile this example with the [mbed Online Compiler](https://developer.mbed.org/compiler/) by using [this project](https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-tls-benchmark).
+
 ## Monitoring the application
 
 The output in the terminal window should be similar to this:

hashing/README.md

@@ -6,6 +6,8 @@ This application performs hashing of a buffer with SHA-256 using various APIs. I
 
 Set up your environment if you have not done so already. For instructions, refer to the [main readme](../README.md).
 
+You can also compile this example with the [mbed Online Compiler](https://developer.mbed.org/compiler/) by using [this project](https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-tls-hashing).
+
 ## Monitoring the application
 
 The output in the terminal window should be similar to this:

tls-client/README.md

@@ -6,6 +6,8 @@ This application downloads a file from an HTTPS server (developer.mbed.org) and
 
 Set up your environment if you have not done so already. For instructions, refer to the [main readme](../README.md).
 
+You can also compile this example with the [mbed Online Compiler](https://developer.mbed.org/compiler/) by using [this project](https://developer.mbed.org/teams/mbed-os-examples/code/mbed-os-example-tls-tls-client).
+
 ## Required hardware
 
 This example also requires an Ethernet cable and connection to the internet additional to the hardware requirements in the [main readme](../README.md).