Add map notes and modify the repo directory

johnnychhsu · Mar 25, 2019 · 934d1e6 · 934d1e6
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diff --git a/md_files/basic.md b/md_files/basic.md
@@ -405,6 +405,7 @@ var m = map[string]Vertex{
     "Google":    {37.42202, -122.08408},
 }
 ```
+If the required key is not in the map, the map will return 0.
 
 **Mutating Map** <br />
 We can use `ele, ok` to get element. If the key is not there, `ok` will be `False`.

diff --git a/go_tour.md → md_files/go_tour.md b/go_tour.md → md_files/go_tour.md