Update CHANGES.txt

Author: Conengmo

CHANGES.txt

@@ -1,3 +1,25 @@
+0.10.0
+~~~~~
+
+- Add user location plugin LocateControl (@fullonic #1116)
+- Bump Leaflet version from 1.4.0 to 1.5.1 (@ocefpaf #1149)
+- Choropleth: warn if `key_on` not found in data (@evwhiz #1144)
+
+Bug fixes
+
+- Fix layer control in DualMap plugin (@conengmo #1156)
+- Fix typo in DivIcon options (@fullonic #1181)
+- Fix JS error in Draw plugin export option (@fullonic #1180)
+- Fix typo in color options in Icon (@adnanhemani #1171)
+- Fix draw and edit options in Draw plugin (@mccarthyryanc #1175)
+- Remove warnings about conflicts with Draw plugin (@fullonic #1184)
+- More explicit `key_on` check in Choropleth (@leandroordonez #1169)
+
+Documentation
+
+- Add Flask example (@penguindustin #1140)
+- Improve contribution guide (@leonardofurtado #1173)
+
 0.9.1
 ~~~~~