Add note about changes to the Eclipse .project file
If changes are made to the .project file, they will be overwritten
when `buck build eclipse` is run again.
This should be obvious, but I just got bitten by it.
Add a short note about this in the documentation.
Change-Id: Ib9ef8fa2c3b8b5dab49c89ea8d039bd4d18678aa
diff --git a/Documentation/dev-buck.txt b/Documentation/dev-buck.txt
index ea70739..c228bb9 100644
--- a/Documentation/dev-buck.txt
+++ b/Documentation/dev-buck.txt
@@ -59,6 +59,10 @@
Expand the `gerrit` project, right-click on the `buck-out` folder, select
'Properties', and then under 'Attributes' check 'Derived'.
+Note that if you make any changes in the project configuration that get
+saved to the `.project` file, for example adding Resource Filters on a
+folder, they will be overwritten the next time you run `buck build eclipse`.
+
Refreshing the Classpath
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