Merge pull request #5025 from NativeScript/tachev/update-proxy-docs

docs: update proxy docs

Author: Dimitar Tachev

README.md

@@ -143,9 +143,10 @@ The <code>--insecure</code> flag allows you to perform insecure SSL connections
 #### Limitations
 
 * You can provide the `<Username>` and `<Password>` attributes only on Windows systems.
-* Proxy settings for the npm and the Android Gradle need to be configured separately. For more information, see the following articles:
+* Proxy settings for the npm, the Android Gradle and (optional) Docker need to be configured separately. For more information, see the following articles:
 	* [Configure the npm proxy](https://docs.npmjs.com/misc/config#https-proxy)
 	* [Configure the Android Gradle proxy](https://docs.gradle.org/3.3/userguide/build_environment.html#sec:accessing_the_web_via_a_proxy)
+    * [Configure the Docker proxy](https://docs.docker.com/network/proxy/)
 
 ### Display Current Proxy Settings
 

docs/man_pages/general/proxy-set.md

@@ -31,9 +31,10 @@ General | `$ tns proxy set [<Url> <% if(isWindows) {%>[<Username> [<Password>]]<
 ### Command Limitations
 
 * You can set credentials only on Windows systems.
-* Proxy settings for npm and (Android) Gradle need to be set separately.
+* Proxy settings for npm, (Android) Gradle and (optional) Docker need to be set separately.
     * configuring `npm` proxy - https://docs.npmjs.com/misc/config#https-proxy
     * (Android) configuring Gradle proxy - set global configuration in the user directory - _<USER_HOME>/.gradle/gradle.properties_ - https://docs.gradle.org/3.3/userguide/build_environment.html#sec:accessing_the_web_via_a_proxy
+    * configuring Docker proxy - https://docs.docker.com/network/proxy/
 
 ### Related Commands