Reorganise tests

Make the titles of test pages more suggestive.
Refactor the documentation of the tests.

docs/tests/navigation/order/strings/10.md

@@ -3,7 +3,7 @@ layout: default
 title: "10"
 nav_order: "10"
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ---
 
 # 10
@@ -12,5 +12,5 @@ grand_parent: Order
 title: "10"
 nav_order: "10"
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ```

docs/tests/navigation/order/strings/2.md

@@ -3,7 +3,7 @@ layout: default
 title: "2"
 nav_order: "2"
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ---
 
 # 2
@@ -12,5 +12,5 @@ grand_parent: Order
 title: "2"
 nav_order: "2"
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ```

docs/tests/navigation/order/strings/a.md

@@ -3,7 +3,7 @@ layout: default
 title: A
 nav_order: A
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ---
 
 # A
@@ -12,5 +12,5 @@ grand_parent: Order
 title: A
 nav_order: A
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ```

docs/tests/navigation/order/strings/aa-lower.md

@@ -3,7 +3,7 @@ layout: default
 title: aa
 nav_order: "aa"
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ---
 
 # aa
@@ -12,5 +12,5 @@ grand_parent: Order
 title: aa
 nav_order: "aa"
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ```

docs/tests/navigation/order/strings/aa.md

@@ -3,7 +3,7 @@ layout: default
 title: Aa
 nav_order: "Aa"
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ---
 
 # Aa
@@ -12,5 +12,5 @@ grand_parent: Order
 title: Aa
 nav_order: "Aa"
 parent: Strings
-grand_parent: Order
+grand_parent: Tests for order
 ```

docs/tests/navigation/order/strings/index.md

@@ -1,7 +1,7 @@
 ---
 layout: default
 title: Strings
-parent: Tests for navigation order
+parent: Tests for order
 nav_order: 2
 has_children: true
 ---