Update README.md

README.md

@@ -35,9 +35,8 @@ $ cmake .. && make -j
 
 ## Features
 * Very fast (see [benchmarks](#benchmarks) below).
-* Headers only or compiled version
+* Headers only or compiled
 * Feature rich formatting, using the excellent [fmt](https://github.com/fmtlib/fmt) library.
-* **New!** [Backtrace](#backtrace-support) support - store debug messages in a ring buffer and display later on demand.
 * Asynchronous mode (optional)
 * [Custom](https://github.com/gabime/spdlog/wiki/3.-Custom-formatting) formatting.
 * Multi/Single threaded loggers.
@@ -50,7 +49,7 @@ $ cmake .. && make -j
     * Easily extendable with custom log targets  (just implement a single function in the [sink](include/spdlog/sinks/sink.h) interface).
 * Log filtering - log levels can be modified in runtime as well as in compile time.
 * Support for loading log levels from argv or from environment var.
-
+* [Backtrace](#backtrace-support) support - store debug messages in a ring buffer and display later on demand.
  
 ## Usage samples
 
@@ -87,20 +86,7 @@ int main()
 }
 
 ```
-#### Load log levels from env variable or from argv
-```c++
-#include "spdlog/cfg/env.h"
-void load_levels_example()
-{
-    // Set the log level to "info" and mylogger to to "trace":
-    // SPDLOG_LEVEL=info,mylogger=trace && ./example
-    spdlog::cfg::load_env_levels();
-    // or from command line:
-    // ./example SPDLOG_LEVEL=info,mylogger=trace
-    // #include "spdlog/cfg/argv.h" // for loading levels from argv
-    // spdlog::cfg::load_argv_levels(args, argv);
-}
-```
+---
 #### Create stdout/stderr logger object
 ```c++
 #include "spdlog/spdlog.h"
@@ -113,6 +99,7 @@ void stdout_example()
     spdlog::get("console")->info("loggers can be retrieved from a global registry using the spdlog::get(logger_name)");
 }
 ```
+
 ---
 #### Basic file logger
 ```c++
@@ -327,7 +314,6 @@ void err_handler_example()
 
 ```
 
-
 ---
 #### syslog 
 ```c++
@@ -351,6 +337,28 @@ void android_example()
 }
 ```
 
+---
+#### Load log levels from env variable or from argv
+
+```c++
+#include "spdlog/cfg/env.h"
+int main (int argc, char *argv[])
+{
+    spdlog::cfg::load_env_levels();
+    // or from command line:
+    // ./example SPDLOG_LEVEL=info,mylogger=trace
+    // #include "spdlog/cfg/argv.h" // for loading levels from argv
+    // spdlog::cfg::load_argv_levels(args, argv);
+}
+```
+So then you can:
+
+```console
+$ export SPDLOG_LEVEL=info,mylogger=trace
+$ ./example
+```
+
+---
 ## Benchmarks
 
 Below are some [benchmarks](https://github.com/gabime/spdlog/blob/v1.x/bench/bench.cpp) done in Ubuntu 64 bit, Intel i7-4770 CPU @ 3.40GHz