chore: fix typos (#4921)

Signed-off-by: co63oc <co63oc@users.noreply.github.com>

docs/mkdocs/docs/home/releases.md

@@ -251,7 +251,7 @@ http://nlohmann.github.io/json/doxygen/classnlohmann_1_1basic__json_a0a45fc74063
 - Fixed typos and broken links in README. #1417 #1423 #1425 #1451 #1455 #1491
 - Fixed documentation of parse function. #1473
 - Suppressed warning that cannot be fixed inside the library. #1401 #1468
-- Imroved package manager suppert:
+- Improved package manager suppert:
     - Updated Buckaroo instructions. #1495
     - Improved Meson support. #1463
     - Added Conda package manager documentation. #1430
@@ -685,7 +685,7 @@ After almost a year, here is finally a new release of JSON for Modern C++, and i
 
 This section describes changes that change the public API of the library and may require changes in code using a previous version of the library. In section "Moving from 2.x.x to 3.0.0" at the end of the release notes, we describe in detail how existing code needs to be changed.
 
-- The library now uses [**user-defined exceptions**](http://nlohmann.github.io/json/doxygen/classnlohmann_1_1basic__json_a9a0aced019cb1d65bb49703406c84970.html#a9a0aced019cb1d65bb49703406c84970) instead of re-using those defined in `<stdexcept>` (#244). This not only allows to add more information to the exceptions (every exception now has an identifier, and parse errors contain the position of the error), but also to easily catch all library exceptions with a single `catch(json::exception)`.
+- The library now uses [**user-defined exceptions**](http://nlohmann.github.io/json/doxygen/classnlohmann_1_1basic__json_a9a0aced019cb1d65bb49703406c84970.html#a9a0aced019cb1d65bb49703406c84970) instead of reusing those defined in `<stdexcept>` (#244). This not only allows to add more information to the exceptions (every exception now has an identifier, and parse errors contain the position of the error), but also to easily catch all library exceptions with a single `catch(json::exception)`.
 - When strings with a different encoding as UTF-8 were stored in JSON values, their serialization could not be parsed by the library itself, as only UTF-8 is supported. To enforce this library limitation and improve consistency, **non-UTF-8 encoded strings now yield a `json::type_error` exception during serialization** (#838). The check for valid UTF-8 is realized with code from [Björn Hoehrmann](http://bjoern.hoehrmann.de/).
 - **NaN and infinity values can now be stored inside the JSON value** without throwing an exception. They are, however, still serialized as `null` (#388).
 - The library's iterator tag was changed from RandomAccessIterator to **[BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator)** (#593). Supporting RandomAccessIterator was incorrect as it assumed an ordering of values in a JSON objects which are unordered by definition.
@@ -1185,7 +1185,7 @@ As `noexcept` and `constexpr` specifier have been added to several functions, th
 This release fixes several small bugs and adds functionality in a backwards-compatible manner. Compared to the [last version (1.0.0)](https://github.com/nlohmann/json/releases/tag/v1.0.0), the following changes have been made:
 
 ### Changes
-- _Fixed_: **Floating-point numbers** are now serialized and deserialized properly such that rountripping works in more cases. [#185, #186, #190, #191, #194]
+- _Fixed_: **Floating-point numbers** are now serialized and deserialized properly such that roundtripping works in more cases. [#185, #186, #190, #191, #194]
 - _Added_: The code now contains **assertions** to detect undefined behavior during development. As the standard function `assert` is used, the assertions can be switched off by defining the preprocessor symbol `NDEBUG` during compilation. [#168]
 - _Added_: It is now possible to get a **reference** to the stored values via the newly added function `get_ref()`. [#128, #184]
 - _Fixed_: Access to object values via keys (**`operator[]`**) now works with all kind of string representations. [#171, #189]