Add month to changelog

Author: staadecker

REAM Model Changelog.md

@@ -11,16 +11,16 @@ update this file.
 
 Changes are listed from oldest (first line) to newest (last line of table).
 
-| PR | Change description |
-| ---- | -------------------|
-| #8 | feat: Add support for other types of GHGs (NOx, SO2, CH4) |
-| #12 | fix: use the middle of the period instead of the start as the cutoff for retirement and predetermined buildout. |
-| #15 | fix: Fix bug where storage costs where being over-counted. |
-| #36 | fix: Remove duplicate transmission lines |
-| #10 | feat: Add support for California policies module |
-| #40  | feat: Add support for planning reserves module |
-| #50 | Upgraded to Pyomo 6.0 |
-| #56 | fix: Convert 2020 predetermined build years to 2019 in get_inputs to avoid conflicts with 2020 period. |
-| #57 | fix: specify predetermined storage energy capacity (previously left unspecified). |
-| #42 | feat: Add parameters to the storage module for self-discharge rate, land use and discharge efficiency. |
-| #68 | fix: change financial params to 2018 dollars & 5% interest rate. Start using terrain multipliers (which now include the economic multiplier). |
+| PR | Month | Change description |
+| ---- | --- | ---------------------|
+| #8 | Feb 2021 | feat: Add support for other types of GHGs (NOx, SO2, CH4) |
+| #12 | March 2021 |fix: use the middle of the period instead of the start as the cutoff for retirement and predetermined buildout. |
+| #15 | March 2021 |fix: Fix bug where storage costs where being over-counted. |
+| #36 | May 2021 |fix: Remove duplicate transmission lines |
+| #10 | June 2021 | feat: Add support for California policies module |
+| #40  | June 2021 | feat: Add support for planning reserves module |
+| #50 | June 2021 | Upgraded to Pyomo 6.0 |
+| #56 | June 2021 | fix: Convert 2020 predetermined build years to 2019 in get_inputs to avoid conflicts with 2020 period. |
+| #57 | June 2021 | fix: specify predetermined storage energy capacity (previously left unspecified). |
+| #42 | June 2021| feat: Add parameters to the storage module for self-discharge rate, land use and discharge efficiency. |
+| #68 | June 2021 | fix: change financial params to 2018 dollars & 5% interest rate. Start using terrain multipliers (which now include the economic multiplier). |