Merge branch 'master' into next. Fixes Symfony typo in README.

README.md

@@ -106,8 +106,8 @@ The segments that are currently available are:
 * **rust_version** - Display the current rust version.
 * [status](#status) - The return code of the previous command.
 * **swap** - Prints the current swap size.
-* [symphony2_tests](#symphony2_tests) - Show a ratio of test classes vs code classes for Symfony2.
-* **symphony2_version** - Show the current Symfony2 version, if you are in a Symfony2-Project dir.
+* [symfony2_tests](#symfony2_tests) - Show a ratio of test classes vs code classes for Symfony2.
+* **symfony2_version** - Show the current Symfony2 version, if you are in a Symfony2-Project dir.
 * [time](#time) - System time.
 * [todo](http://todotxt.com/) - Shows the number of tasks in your todo.txt tasks file.
 * [vi_mode](#vi_mode)- Vi editing mode (NORMAL|INSERT).
@@ -268,7 +268,13 @@ This segment shows the return code of the last command.
 |----------|---------------|-------------|
 |`POWERLEVEL9K_STATUS_VERBOSE`|`true`|Set to false if you wish to hide this segment when the last command completed successfully.|
 
-##### symphony2_tests
+##### ram
+
+| Variable | Default Value | Description |
+|----------|---------------|-------------|
+|`POWERLEVEL9K_RAM_ELEMENTS`|Both|Specify `ram_free` or `swap_used` to only show one or the other rather than both.|
+
+##### symfony2_tests
 
 See [Unit Test Ratios](#unit-test-ratios), below.