Ignore dictionaries to reflect docs

Android.gitignore

@@ -37,6 +37,7 @@ captures/
 .idea/workspace.xml
 .idea/tasks.xml
 .idea/gradle.xml
+.idea/dictionaries
 .idea/libraries
 
 # Keystore files

Global/JetBrains.gitignore

@@ -4,6 +4,7 @@
 # User-specific stuff:
 .idea/**/workspace.xml
 .idea/**/tasks.xml
+.idea/dictionaries
 
 # Sensitive or high-churn files:
 .idea/**/dataSources/