Move the "contributing" section to a shiny CONTRIBUTING.md file

CONTRIBUTING.md

@@ -0,0 +1,25 @@
+# Notes for Contributors
+
+## Testing
+
+Always run unit tests before committing. `make` will take care of this.
+
+## Generated files
+
+Some files are generated from other files. They should be commmited into the repository for this package to be go-getable. Run `go generate ./...` to regenerate them in case you modified the source.
+
+## Formatting the Code
+
+Always format the code with `goimports` before committing. Run `go get golang.org/x/tools/cmd/goimports` to install `goimports`, and `goimports -w .` to format all golang sources.
+
+To automate this you can set up a `goimports` filter for Git by putting this in `~/.gitconfig`:
+
+    [filter "goimports"]
+        clean = goimports
+        smudge = cat
+
+Git will then always run `goimports` for you before comitting, since `.gitattributes` in this repository refers to this filter. More about Git attributes and filters [here](https://www.kernel.org/pub/software/scm/git/docs/gitattributes.html).
+
+## Licensing
+
+By contributing, you agree to license your code under the same license as existing source code of elvish. See the LICENSE file.

README.md

@@ -135,33 +135,6 @@ go get -u github.com/elves/elvish
 
 Remember to put the two `export`s above into your `bashrc` or `zshrc` (or whatever).
 
-## Notes for Contributors
-
-### Testing
-
-Always run unit tests before committing. `make` will take care of this.
-
-### Generated files
-
-Some files are generated from other files. They should be commmited into the repository for this package to be go-getable. Run `go generate ./...` to regenerate them in case you modified the source.
-
-### Formatting the Code
-
-Always format the code with `goimports` before committing. Run `go get golang.org/x/tools/cmd/goimports` to install `goimports`, and `goimports -w .` to format all golang sources.
-
-To automate this you can set up a `goimports` filter for Git by putting this in `~/.gitconfig`:
-
-    [filter "goimports"]
-        clean = goimports
-        smudge = cat
-
-Git will then always run `goimports` for you before comitting, since `.gitattributes` in this repository refers to this filter. More about Git attributes and filters [here](https://www.kernel.org/pub/software/scm/git/docs/gitattributes.html).
-
-### Licensing
-
-By contributing, you agree to license your code under the same license as existing source code of elvish. See the LICENSE file.
-
-
 ## Name
 
 In [roguelikes](https://en.wikipedia.org/wiki/Roguelike), items made by the elves have a reputation of high quality.  These are usually called **elven** items, but I chose **elvish** for an obvious reason.