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+# Date
+
 [![Join the chat at https://gitter.im/HowardHinnant/date](https://badges.gitter.im/HowardHinnant/date.svg)](https://gitter.im/HowardHinnant/date?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-<hr/>
+
+---
 
 **[Try it out on wandbox!](https://wandbox.org/permlink/vqwMyTphHJv5iXX7)**
 
+## Summary
+
 This is actually several separate C++11/C++14/C++17 libraries:
 
-1.  `"date.h"` is a header-only library which builds upon `<chrono>`.  It adds some new `duration` types, and new `time_point` types.  It also adds "field" types such as `year_month_day` which is a struct `{year, month, day}`.  And it provides convenient means to convert between the "field" types and the `time_point` types.
+1. `"date.h"` is a header-only library which builds upon `<chrono>`.  It adds some new `duration` types, and new `time_point` types.  It also adds "field" types such as `year_month_day` which is a struct `{year, month, day}`.  And it provides convenient means to convert between the "field" types and the `time_point` types.
 
     * Documentation: http://howardhinnant.github.io/date/date.html
     * Video: https://www.youtube.com/watch?v=tzyGjOm8AKo
     * Slides: http://schd.ws/hosted_files/cppcon2015/43/hinnant_dates.pdf
 
-2. `"tz.h"` / `"tz.cpp"`  are a timezone library built on top of the `"date.h"` library.  This timezone library is a complete parser of the IANA timezone database.  It provides for an easy way to access all of the data in this database, using the types from `"date.h"` and `<chrono>`.  The IANA database also includes data on leap seconds, and this library provides utilities to compute with that information as well.
+1. `"tz.h"` / `"tz.cpp"`  are a timezone library built on top of the `"date.h"` library.  This timezone library is a complete parser of the IANA timezone database.  It provides for an easy way to access all of the data in this database, using the types from `"date.h"` and `<chrono>`.  The IANA database also includes data on leap seconds, and this library provides utilities to compute with that information as well.
 
     * Documentation: http://howardhinnant.github.io/date/tz.html
     * Video: https://www.youtube.com/watch?v=Vwd3pduVGKY
     * Slides: http://schd.ws/hosted_files/cppcon2016/0f/Welcome%20To%20The%20Time%20Zone%20-%20Howard%20Hinnant%20-%20CppCon%202016.pdf
 
-3. `"iso_week.h"` is a header-only library built on top of the `"date.h"` library which implements the ISO week date calendar.  
+1. `"iso_week.h"` is a header-only library built on top of the `"date.h"` library which implements the ISO week date calendar.
 
     * Documentation: http://howardhinnant.github.io/date/iso_week.html
 
-4. `"julian.h"` is a header-only library built on top of the `"date.h"` library which implements a proleptic Julian calendar which is fully interoperable with everything above.
+1. `"julian.h"` is a header-only library built on top of the `"date.h"` library which implements a proleptic Julian calendar which is fully interoperable with everything above.
 
     * Documentation: http://howardhinnant.github.io/date/julian.html
 
-5. `"islamic.h"` is a header-only library built on top of the `"date.h"` library which implements a proleptic Islamic calendar which is fully interoperable with everything above.
+1. `"islamic.h"` is a header-only library built on top of the `"date.h"` library which implements a proleptic Islamic calendar which is fully interoperable with everything above.
 
     * Documentation: http://howardhinnant.github.io/date/islamic.html
 
+## Standardization
+
 Slightly modified versions of `"date.h"` and `"tz.h"` were voted into the C++20 working draft at the Jacksonville FL meeting on 2018-03-17:
 
-   * http://howardhinnant.github.io/date/d0355r7.html
+* http://howardhinnant.github.io/date/d0355r7.html
 
-List of projects using this library:
+## Build & Test
 
-   * www.safe.com
-   * www.webtoolkit.eu/wt
+You will need [CMake](https://cmake.org/) and a recent C++ compiler. Here follows a guide of how to build and test using the CMake Makefile generator.
+
+```bash
+mkdir build
+cd build
+cmake ../
+cmake --build . --target testit # Consider '-- -j4' for multithreading
+```
+## Projects using this library
+
+* www.safe.com
+* www.webtoolkit.eu/wt
 
 If you would like your project (or product) on this list, just let me know.