Add notes to REAME.md

README.md

@@ -47,7 +47,8 @@ Other features like _syntax highlighting_, _snippets_, _symbols_ and _basic comp
   "crystal-lang.completion": true,
   "crystal-lang.hover": true,
   "crystal-lang.server": "",
-  "crystal-lang.logLevel": "error"
+  "crystal-lang.logLevel": "error",
+  "crystal-lang.compiler": "crystal"
 }
 ```
 
@@ -83,9 +84,11 @@ The default value is 20.
 
 ### 3.3. MainFile
 
+Note: reload VSCode to apply this setting.
+
 `crystal-lang.mainFile` says to the compiler which file should analyze.
 
-It is useful when `"crystal-lang.problems" = "build"` in projects where a main file do `require "./**"`
+It is useful with `"crystal-lang.problems" = "build"` in projects where a main file do `require "./**"`
 
 Also is used by features like **implementations** and show **type on hover** to specify the tool scope.
 
@@ -99,6 +102,8 @@ Also is used by features like **implementations** and show **type on hover** to
 
 ### 3.4. ProcessesLimit
 
+Note: reload VSCode to apply this setting.
+
 This extension block the amout of crystal processes executing in parallel to reduce resources usage.
 
 Commonly crystal takes milliseconds to do something like formatting, but in some projects other features like implementations or completion can take a moment. To prevent using too many resources you can set the amount of processes with:
@@ -200,6 +205,17 @@ Levels avaliables:
 }
 ```
 
+### 3.10. Compiler
+
+> Note: reload VSCode to apply this setting.
+
+Allow to set a custom absolute path for Crystal compiler executable.
+
+```json
+  "crystal-lang.compiler": "/usr/bin/crystal"
+}
+```
+
 ## 4. Messages
 
 Sometimes in some projects, `crystal tool` turns heavy, in this case you can check error and info messages.