Update docs

Author: tommysitu

docs/pages/corefunctionality/configuration.rst

@@ -53,6 +53,14 @@ If you are developing behind a cooperate proxy, you can configure Hoverfly to us
     localConfigs().upstreamProxy(new InetSocketAddress("127.0.0.1", 8900))
 
 
+By default Hoverfly binary is copied to the system temporary folder to run. In some cases, you may not have permission to write to the temporary folder, eg. in CI server,
+what you can do is to specify a different Hoverfly working directory:
+
+.. code-block:: java
+
+    localConfigs().binaryLocation("/absolute/path/to/hoverfly/directory")
+
+
 Logging
 -------
 Hoverfly logs to SLF4J by default, meaning that you have control of Hoverfly logs using JAVA logging framework.
@@ -221,4 +229,4 @@ endpoint authentication without the need for username and password.
         .withAuthHeader() // this will get auth token from an environment variable named 'HOVERFLY_AUTH_TOKEN'
 
     remoteConfigs()
-        .withAuthHeader("some.token") // pass in token directly
+        .withAuthHeader("some.token") // pass in token directly

src/main/java/io/specto/hoverfly/junit/core/config/LocalHoverflyConfig.java

@@ -162,6 +162,11 @@ public LocalHoverflyConfig addCommands(String... commands) {
         return this;
     }
 
+    /**
+     * Overrides the default path for Hoverfly binary and working directory.
+     * @param binaryLocation absolute path for the Hoverfly working directory
+     * @return the {@link LocalHoverflyConfig} for further customizations
+     */
     public HoverflyConfig binaryLocation(String binaryLocation) {
         this.binaryLocation = binaryLocation;
         return this;