docs: fixed links in 02_run.md and 05_also.md (Kotlin#71)

Author: p7nov

examples/06_scope_functions/02_run.md

@@ -1,6 +1,6 @@
 # run
 
-Like [`let`](01_let.md), `run` is another scoping function from the standard library. Basically, it does the same: executes a code block and returns its result. 
+Like [`let`](01_let), `run` is another scoping function from the standard library. Basically, it does the same: executes a code block and returns its result. 
 The difference is that inside `run` the object is accessed by `this`. This is useful when you want to call the object's methods rather than pass it as an argument.<div class="language-kotlin" theme="idea" data-min-compiler-version="1.3">
 
 <div class="language-kotlin" theme="idea" data-min-compiler-version="1.3">

examples/06_scope_functions/05_also.md

@@ -1,6 +1,6 @@
 # also
 
-`also` works like [`apply`](04_apply.md): it executes a given block and returns the object called.
+`also` works like [`apply`](04_apply): it executes a given block and returns the object called.
 Inside the block, the object is referenced by `it`, so it's easier to pass it as an argument.
 This function is handy for embedding additional actions, such as logging in call chains.