Fix docs link

Related to #13284.

Author: josevalim

Diff for: Makefile

@@ -188,7 +188,6 @@ docs_elixir: compile ../ex_doc/bin/ex_doc
 	$(Q) rm -rf doc/elixir
 	$(call DOCS_COMPILE,Elixir,elixir,Kernel,--config "lib/elixir/scripts/elixir_docs.exs")
 	$(call DOCS_CONFIG,elixir)
-	cp -R lib/elixir/pages/images doc/elixir
 
 docs_eex: compile ../ex_doc/bin/ex_doc
 	@ echo "==> ex_doc (eex)"

Diff for: lib/elixir/lib/enum.ex

@@ -261,7 +261,7 @@ defmodule Enum do
   traversed as if it was an enumerable.
 
   For a general overview of all functions in the `Enum` module, see
-  [the `Enum` cheatsheet](enum-cheat.html).
+  [the `Enum` cheatsheet](enum-cheat.cheatmd).
 
   The functions in this module work in linear time. This means that, the
   time it takes to perform an operation grows at the same rate as the length

Diff for: lib/elixir/pages/anti-patterns/design-anti-patterns.md

@@ -167,7 +167,7 @@ defmodule MyModule do
 end
 ```
 
-This is only possible because the `File` module provides APIs for reading files with tuples as results (`File.read/1`), as well as a version that raises an exception (`File.read!/1`). The bang (exclamation point) is effectively part of [Elixir's naming conventions](naming-conventions.html#trailing-bang-foo).
+This is only possible because the `File` module provides APIs for reading files with tuples as results (`File.read/1`), as well as a version that raises an exception (`File.read!/1`). The bang (exclamation point) is effectively part of [Elixir's naming conventions](naming-conventions.md#trailing-bang-foo).
 
 Library authors are encouraged to follow the same practices. In practice, the bang variant is implemented on top of the non-raising version of the code. For example, `File.read!/1` is implemented as:
 

Diff for: lib/elixir/pages/getting-started/basic-types.md

@@ -325,6 +325,6 @@ iex> 1 === 1.0
 false
 ```
 
-The comparison operators in Elixir can compare across any data type. We say these operators perform _structural comparison_. For more information, you can read our documentation on [Structural vs Semantic comparisons](Kernel.html#module-structural-comparison).
+The comparison operators in Elixir can compare across any data type. We say these operators perform _structural comparison_. For more information, you can read our documentation on [Structural vs Semantic comparisons](`Kernel#module-structural-comparison`).
 
 Elixir also provides data-types for expressing collections, such as lists and tuples, which we learn next. When we talk about concurrency and fault-tolerance via processes, we will also discuss ports, pids, and references, but that will come on later chapters. Let's move forward.

Diff for: lib/elixir/pages/getting-started/enumerable-and-streams.md

@@ -13,7 +13,7 @@ iex> Enum.map(%{1 => 2, 3 => 4}, fn {k, v} -> k * v end)
 [2, 12]
 ```
 
-The `Enum` module provides a huge range of functions to transform, sort, group, filter and retrieve items from enumerables. It is one of the modules developers use frequently in their Elixir code. For a general overview of all functions in the `Enum` module, see [the `Enum` cheatsheet](enum-cheat.html).
+The `Enum` module provides a huge range of functions to transform, sort, group, filter and retrieve items from enumerables. It is one of the modules developers use frequently in their Elixir code. For a general overview of all functions in the `Enum` module, see [the `Enum` cheatsheet](enum-cheat.cheatmd).
 
 Elixir also provides ranges (see `Range`), which are also enumerable:
 

Diff for: lib/elixir/pages/meta-programming/macros.md

@@ -26,7 +26,7 @@ defmodule Unless do
 end
 ```
 
-The function receives the arguments and passes them to `if/2`. However, as we learned in the [previous guide](quote-and-unquote.html), the macro will receive quoted expressions, inject them into the quote, and finally return another quoted expression.
+The function receives the arguments and passes them to `if/2`. However, as we learned in the [previous guide](quote-and-unquote.md), the macro will receive quoted expressions, inject them into the quote, and finally return another quoted expression.
 
 Let's start `iex` with the module above:
 

Diff for: lib/elixir/pages/mix-and-otp/dynamic-supervisor.md

@@ -183,7 +183,7 @@ A GUI should pop up containing all sorts of information about our system, from g
 
 In the Applications tab, you will see all applications currently running in your system alongside their supervision tree. You can select the `kv` application to explore it further:
 
-<img src="images/kv-observer.png" alt="Observer GUI screenshot" />
+<img src="assets/kv-observer.png" alt="Observer GUI screenshot" />
 
 Not only that, as you create new buckets on the terminal, you should see new processes spawned in the supervision tree shown in Observer:
 

Diff for: lib/elixir/pages/references/operators.md

@@ -64,7 +64,7 @@ Finally, these operators appear in the precedence table above but are only meani
   * `=>` - see [`%{}`](`%{}/1`)
   * `when` - see [Guards](patterns-and-guards.md#guards)
   * `<-` - see [`for`](`for/1`) and [`with`](`with/1`)
-  * `\\` - see [Default arguments](Kernel.html#def/2-default-arguments)
+  * `\\` - see [Default arguments](`Kernel#def/2-default-arguments`)
 
 ## Comparison operators
 

Diff for: lib/elixir/pages/references/patterns-and-guards.md

@@ -274,7 +274,7 @@ Not all expressions are allowed in guard clauses, but only a handful of them. Th
 
 ### List of allowed functions and operators
 
-You can find the built-in list of guards [in the `Kernel` module](Kernel.html#guards). Here is an overview:
+You can find the built-in list of guards [in the `Kernel` module](`Kernel#guards`). Here is an overview:
 
   * comparison operators ([`==`](`==/2`), [`!=`](`!=/2`), [`===`](`===/2`), [`!==`](`!==/2`),
     [`<`](`</2`), [`<=`](`<=/2`), [`>`](`>/2`), [`>=`](`>=/2`))

Diff for: lib/elixir/pages/references/typespecs.md

@@ -321,7 +321,7 @@ end
 ```
 
 This code generates a warning letting you know that you are mistakenly implementing `parse/0` instead of `parse/1`.
-You can read more about `@impl` in the [module documentation](Module.html#module-impl).
+You can read more about `@impl` in the [module documentation](`Module#module-impl`).
 
 ### Using behaviours
 

Diff for: lib/elixir/pages/references/unicode-syntax.md

@@ -81,7 +81,7 @@ Unicode atoms in Elixir follow the identifier rule above with the following modi
   * `<Start>` additionally includes the code point `_` (005F)
   * `<Continue>` additionally includes the code point `@` (0040)
 
-Note atoms can also be quoted, which allows any characters, such as `:"hello elixir"`. All Elixir operators are also valid atoms, such as `:+`, `:@`, `:|>`, and others. The full description of valid atoms is available in the ["Atoms" section in the syntax reference](syntax-reference.html#atoms).
+Note atoms can also be quoted, which allows any characters, such as `:"hello elixir"`. All Elixir operators are also valid atoms, such as `:+`, `:@`, `:|>`, and others. The full description of valid atoms is available in the ["Atoms" section in the syntax reference](syntax-reference.md#atoms).
 
 #### Variables, local calls, and remote calls
 

Diff for: lib/elixir/scripts/elixir_docs.exs

@@ -2,6 +2,7 @@
 canonical = System.fetch_env!("CANONICAL")
 
 [
+  assets: "lib/elixir/pages/images",
   extras: [
     "lib/elixir/pages/getting-started/introduction.md",
     "lib/elixir/pages/getting-started/basic-types.md",