fix lingering links

steps/11/README.md

@@ -4,11 +4,9 @@ Let's now learn how to use our new `StorageValue`.
 
 ## Basic APIs
 
-The full list of APIs available for a `StorageValue` can be found here:
+This tutorial will only go over just the basic APIs needed to build our Pallet.
 
-https://docs.rs/frame-support/37.0.0/frame_support/storage/types/struct.StorageValue.html
-
-But we will go over just the basics we need to build our Pallet.
+Check out the [`StorageValue` documentation](https://docs.rs/frame-support/37.0.0/frame_support/storage/types/struct.StorageValue.html) if you want to see the full APIs.
 
 ### Reading Storage
 

steps/13/README.md

@@ -82,9 +82,7 @@ In blockchain systems, these can literally be billion dollar bugs, so let's look
 
 ### Checked Math
 
-The first choice for doing safe math is to use `checked_*` APIs, for example `checked_add`:
-
-https://docs.rs/num/latest/num/trait.CheckedAdd.html
+The first choice for doing safe math is to use `checked_*` APIs, for example [`checked_add`](https://docs.rs/num/latest/num/trait.CheckedAdd.html).
 
 The checked math APIs will check if there are any underflows or overflows, and return `None` in those cases. Otherwise, if the math operation is calculated without error, it returns `Some(result)`.
 
@@ -111,9 +109,7 @@ Note that we didn't need to call `.into()` in this case, because `?` already doe
 
 ### Saturating Math
 
-The other option for safe math is to use `saturating_*` APIs, for example `saturating_add`:
-
-https://docs.rs/num/latest/num/traits/trait.SaturatingAdd.html
+The other option for safe math is to use `saturating_*` APIs, for example [`saturating_add`](https://docs.rs/num/latest/num/traits/trait.SaturatingAdd.html).
 
 This option is useful because it is safe and does NOT return an `Option`.
 

steps/18/README.md

@@ -4,11 +4,9 @@ Now let's learn to interact with our `Kitties` storage map, and update the map w
 
 ## Basic APIs
 
-The full list of APIs available for `StorageMap` can be found here:
+This tutorial will only go over just the basic APIs needed to build our Pallet.
 
-https://docs.rs/frame-support/37.0.0/frame_support/storage/types/struct.StorageMap.html
-
-But we will go over just the basics we need to build our Pallet.
+Check out the [`StorageMap` documentation](https://docs.rs/frame-support/37.0.0/frame_support/storage/types/struct.StorageMap.html) if you want to see the full APIs.
 
 ### Reading Storage
 

steps/31/README.md

@@ -32,9 +32,7 @@ There are other ways to define the bound, and even make it configurable, but tha
 
 ## Basic APIs
 
-The `BoundedVec` type has almost all the same APIs as a `Vec. You can find the full list of APIs here:
-
-https://docs.rs/frame-support/37.0.0/frame_support/struct.BoundedVec.html
+The `BoundedVec` type has almost all the same APIs as a `Vec`. You can find the full list of APIs in the [`BoundedVec` documentation](https://docs.rs/frame-support/37.0.0/frame_support/struct.BoundedVec.html).
 
 The main difference is the fact that a `BoundedVec` cannot always accept a new item.