Changelog added

Author: nickmaccarthy

CHANGELOG.md

@@ -1,8 +1,6 @@
 # Changelog
-================
 
 ## 1.4.8 (2019-10-26)
-======================
 
 * [FIX] [Issue #9](https://github.com/nickmaccarthy/python-datemath/issues/9) && [Issue #8](https://github.com/nickmaccarthy/python-datemath/issues/8) - Fixing deprecated arrow `replace()` function with `shift()`.
 * [FIX] Arrow upgrade to `0.15.2` to fix the above mentioned issues
@@ -13,11 +11,9 @@
 * [FIX] replaced `ts = ts.replace(tzinfo=tz.gettz(timezone))` with `ts = ts.replace(tzinfo=timezone)` in `datemath.helpers.parseTime()` to fix [Issue #7](https://github.com/nickmaccarthy/python-datemath/issues/7)
 
 ## v1.4.7 (2017-11-10)
-========================
 * [FIX] Fixed timezone for date strings: [Issue #6](https://github.com/nickmaccarthy/python-datemath/issues/6)
 
 ## v1.4.5 (2017-03-21)
-========================
 * [NEW] Added roundDown functionality.  Allows user to specify the default rounding for expressions such as `/d`.
 * example - assuming the time is currently 2016-01-01 12:00:00, we should get the following
 ```
@@ -29,9 +25,7 @@
 ```   
 
 ## v1.4.4 (2016-12-28)
-========================
 * [FIX] Fixed bug with expression logic and rounding:  https://github.com/nickmaccarthy/python-datemath/pull/2
 
 ## 1.4.3 (2016-03-31)
-========================
 * [NEW] Floats are now supported for days, hours, and seconds units.  Example ```now-2.5d```, ```now-3.2h```. Any other unit other than days, hours, or seconds that is a float will be converted to an int and floored due to the datetime() module not being able to handle them.