docs: 2.0 release post updated

docs/blog/posts/2.0.0-released.md

@@ -12,7 +12,8 @@ categories:
 [GitHub](https://github.com/mpusz/mp-units/releases/tag/v2.0.0) and
 [Conan](https://conan.io/center/recipes/mp-units?version=2.0.0).**
 
-In this post, we will describe all the changes introduced by the new version.
+The list of the most significant changes introduced by the new version can be found in our
+[release notes](../../release_notes.md#2.0.0). We will also describe some of them in this post.
 
 <!-- more -->
 
@@ -39,7 +40,7 @@ Here are the significant changes that the users can observe:
 
 - **Header files content and layout**
 
-    Previously, all the header files resided in the _include/units_ directory, and now they can be
+    Previously, all the header files resided in the _include/units_ directory. Now, they can be
     found in _include/mp-units_. The project file tree was significantly changed as well. Many
     files were moved to different subdirectories or renamed.
 
@@ -50,10 +51,12 @@ Here are the significant changes that the users can observe:
 
 - **Abstractions, interfaces, definitions**
 
-    The interfaces of all of the types were refactored, and we have a new way to construct a `quantity`
+    The interfaces of all of the types were refactored. We got unit symbols and a new way
-    and `quantity_point`, we got unit symbols, and nearly all of the template arguments are now passed
+    to construct a `quantity` and `quantity_point`. The readability of the generated types was improved thanks
-    by values thanks to class NTTP extensions in C++20. Also, systems definitions are much terser now
+    to the introduction of expression templates. Nearly all of the template arguments are now passed
-    thanks to a new design approach.
+    by values thanks to class NTTP extensions in C++20. As a result, unit definitions are much
+    easier and terser. Also, the V2 has a powerful ability to model systems of quantities and
+    provides definitions for many ISQ quantities.
 
 *[NTTP]: Non-Type Template Parameter
 
@@ -90,13 +93,29 @@ to be considered a good practice here.
 
 ### No UDLs anymore
 
-Over the years, we have learned that UDLs are not a good solution either. More information on this
+Over the years, we have learned that UDLs are not a good solution. More information on this
 subject can be found in the
 [Why don't we use UDLs to create quantities?](../../getting_started/faq.md#why-dont-we-use-udls-to-create-quantities)
 chapter.
 
 *[UDL]: User-Defined Literals
 
+### No construction of a `quantity` from a raw value
+
+To improve safety, we no longer allow the construction of quantities from raw values. In the new design, we
+always need to explicitly specify a unit to create a `quantity`:
+
+```cpp
+quantity q1 = 42 * m;
+quantity<si::metre> = 2 * km;
+quantity q3(42, si::metre);
+```
+
+The previous approach was reported to be error-prone under maintenance. More on this subject
+can be found in the
+[Why can't I create a quantity by passing a number to a constructor?](../../getting_started/faq.md#why-cant-i-create-a-quantity-by-passing-a-number-to-a-constructor)
+chapter.
+
 
 ## New look and feel