vscode: move docks about syntax tree to dev/README.md

Author: Veetaha

docs/dev/README.md

@@ -155,6 +155,16 @@ There's also two VS Code commands which might be of interest:
 
 * `Rust Analyzer: Syntax Tree` shows syntax tree of the current file/selection.
 
+  You can hover over syntax nodes in the opened text file to see the appropriate
+  rust code that it refers to and the rust editor will also highlight the proper
+  text range.
+
+  If you press <kbd>Ctrl</kbd> (i.e. trigger goto definition) in the inspected
+  Rust source file the syntax tree read-only editor should scroll to and select the
+  appropriate syntax node token.
+
+  ![demo](https://user-images.githubusercontent.com/36276403/78225773-6636a480-74d3-11ea-9d9f-1c9d42da03b0.png)
+
 # Profiling
 
 We have a built-in hierarchical profiler, you can enable it by using `RA_PROFILE` env-var:

docs/user/features.md

@@ -81,16 +81,6 @@ Join selected lines into one, smartly fixing up whitespace and trailing commas.
 Shows the parse tree of the current file. It exists mostly for debugging
 rust-analyzer itself.
 
-You can hover over syntax nodes in the opened text file to see the appropriate
-rust code that it refers to and the rust editor will also highlight the proper
-text range.
-
-If you press <kbd>Ctrl</kbd> (i.e. trigger goto definition) in the inspected
-Rust source file the syntax tree readonly editor should scroll to and select the
-appropriate syntax node token.
-
-<img src="https://user-images.githubusercontent.com/36276403/78043783-7425e180-737c-11ea-8653-b02b773c5aa1.png" alt="demo" height="200px" >
-
 #### Expand Macro Recursively
 
 Shows the full macro expansion of the macro at current cursor.