Update README.md

README.md

@@ -18,7 +18,7 @@ Just copy the files to your build tree and use a C++11 compiler
 * Headers only.
 * No dependencies.
 * Cross platform - Linux / Windows on 32/64 bits.
-* *new* [cppformat](http://cppformat.github.io/) for formatting and extra performance: ```logger.info("The number {} in hex is {:X}", 255, 255)
+* **new**! Now using the excellent [cppformat](http://cppformat.github.io/) for feature rich formatting and extra performance: ```logger.info("The number {} in hex is {:X}", 255, 255)
 * stream call style: ```logger.info("Hello") << " logger";
 * mixed calls style ```logger.info("Hello {}", name) << 1 << 2 << 3;
 * [Custom](https://github.com/gabime/spdlog/wiki/Custom-formatting) formatting.
@@ -29,7 +29,7 @@ Just copy the files to your build tree and use a C++11 compiler
     * Console logging.
     * Linux syslog.
     * Easily extendable with custom log targets  (just implement a single function in the [sink](include/spdlog/sinks/sink.h) interface).
-* Optional async logging .
+* Optional, even faster, async logging .
 * Log levels.
 
 
@@ -61,17 +61,28 @@ int main(int, char* [])
         std::string filename = "spdlog_example";
         auto console = spd::stdout_logger_mt("console");
         console->info("Welcome to spdlog!") ;
-        console->info() << "Creating file " << filename << "..";
+        console->info("Creating file {}..", filename);
 
         auto file_logger = spd::rotating_logger_mt("file_logger", filename, 1024 * 1024 * 5, 3);
         file_logger->info("Log file message number", 1);
 
         for (int i = 0; i < 100; ++i)
         {
-            auto square = i*i;
-            file_logger->info() << i << '*' << i << '=' << square << " (" << "0x" << std::hex << square << ")";
+            file_logger->info("{} * {} = {}, i, i, i*i );
         }
         
+        
+        console->info("Easy padding in numbers like {:08d}", 12);
+        console->info("int: {0:d};  hex: {0:x};  oct: {0:o}; bin: {0:b}", 42);
+        console->info("Positional args are {1} {0}..", "too", "supported): 
+        
+        console->info("{:<30}", "left aligned");
+        console->info("{:>30}", "right aligned");
+        console->info("{:^30}", "centered");
+        
+        //see cppformat's full docs here:
+        //http://cppformat.readthedocs.org/en/stable/syntax.html
+        
         // Change log level to all loggers to warning and above
         spd::set_level(spd::level::WARN);
         console->info("This should not be displayed");