Merge pull request #40 from stevenhua0320/conda-release-fix

fix: add three dependencies to conda to ensure correct build

Author: sbillinge

news/conda-release-fix.rst

@@ -0,0 +1,23 @@
+**Added:**
+
+* no news needed: add traitsui into conda.txt
+
+**Changed:**
+
+* <news item>
+
+**Deprecated:**
+
+* <news item>
+
+**Removed:**
+
+* <news item>
+
+**Fixed:**
+
+* <news item>
+
+**Security:**
+
+* <news item>

requirements/conda.txt

@@ -5,3 +5,5 @@ scipy
 traits
 pyfai
 matplotlib
+traitsui
+diffpy.srxplanar