Update changelog (#1187)

Author: esoteric-ephemera

CHANGELOG.md

@@ -1,5 +1,37 @@
 # Change log
 
+## v0.0.20
+
+### Enhancements 🛠
+* Add MatPES forcefields by @esoteric-ephemera in https://github.com/materialsproject/atomate2/pull/1158
+* Add `DynamicOpenMMFlowMaker` for dynamic OpenMM Simulations by @shehan807 in https://github.com/materialsproject/atomate2/pull/1115
+* atomate2 / OpenMM OPLS-AA Enhancements by @shehan807 in https://github.com/materialsproject/atomate2/pull/1111
+* Add updated MP workflows + cleanup by @esoteric-ephemera in https://github.com/materialsproject/atomate2/pull/1139
+### Documentation 📖
+* Improve documentation LOBSTER and PHONON workflow by @JaGeo in https://github.com/materialsproject/atomate2/pull/1117
+* Add key concept tutorial to tutorial list in README by @QuantumChemist in https://github.com/materialsproject/atomate2/pull/1120
+* Fixing headline levels in key_concepts_overview.md by @QuantumChemist in https://github.com/materialsproject/atomate2/pull/1121
+* try to fix the doc by @JaGeo in https://github.com/materialsproject/atomate2/pull/1125
+* Added code snippets for Grüneisen, QHA and EOS wfs documentation by @QuantumChemist in https://github.com/materialsproject/atomate2/pull/1130
+* a few improvements for the tutorials by @QuantumChemist in https://github.com/materialsproject/atomate2/pull/1132
+* Update tutorials.md by @JaGeo in https://github.com/materialsproject/atomate2/pull/1138
+* Electrode workflow and documentation improvements by @esoteric-ephemera in https://github.com/materialsproject/atomate2/pull/1055
+* Update index.md by @JaGeo in https://github.com/materialsproject/atomate2/pull/1155
+### House-Keeping 🧹
+* More CI fixes by @esoteric-ephemera in https://github.com/materialsproject/atomate2/pull/1141
+### Other Changes
+* Pin MACE calculator version, add missing metadata to AseStructureTaskDoc by @esoteric-ephemera in https://github.com/materialsproject/atomate2/pull/1119
+* Tutorials for QHA and Grüneisen workflows by @JaGeo in https://github.com/materialsproject/atomate2/pull/1122
+* add more headlines to tutorials and fix a typo by @JaGeo in https://github.com/materialsproject/atomate2/pull/1126
+* Minor update to tutorials by @naik-aakash in https://github.com/materialsproject/atomate2/pull/1128
+* adjust example flow names by @QuantumChemist in https://github.com/materialsproject/atomate2/pull/1131
+* Aims phonon tutorials by @tpurcell90 in https://github.com/materialsproject/atomate2/pull/1136
+* fix gruneisen tutorial by @JaGeo in https://github.com/materialsproject/atomate2/pull/1142
+* fix link again for aims tutorial by @JaGeo in https://github.com/materialsproject/atomate2/pull/1143
+* Append name relax by @JaGeo in https://github.com/materialsproject/atomate2/pull/1150
+* add more info on jobflow-remote by @JaGeo in https://github.com/materialsproject/atomate2/pull/1154
+* Add example MP-compatible phase diagram tutorial by @esoteric-ephemera in https://github.com/materialsproject/atomate2/pull/1159
+
 ## v0.0.19
 
 ### Bug Fixes 🐛