Rephrase the instructions of the exercise `point`

subjects/convertbase/README.md

@@ -3,8 +3,11 @@
 ### Instructions
 
 Write a function that receives three arguments:
+
 - `nbr`: A string representing a numberic value in a [base](https://simple.wikipedia.org/wiki/Base_(mathematics)).
+
 - `baseFrom`: A string representing the base `nbr` it's using.
+
 - `baseTo`: A string representing the base `nbr` should be represented in the returned value.
 
 Only valid bases will be tested.

subjects/point/README.md

@@ -2,14 +2,12 @@
 
 ### Instructions
 
-Create a `.go` file.
+Create a new directory called `point`.
 
-- The code below has to be copied in that file.
+- The code below has to be copied in a file called `main.go` inside the `point` directory.
 
 - The necessary changes have to be applied so that the program works.
 
-- The program must be submitted inside a folder with the name `point`.
-
 ### Code to be copied
 
 ```go