docs: Add upgrading guide and release blogpost to changelog (#1459)

Author: vdusek

CHANGELOG.md

@@ -17,6 +17,9 @@ All notable changes to this project will be documented in this file.
 
 ## [1.0.0](https://github.com/apify/crawlee-python/releases/tag/v1.0.0) (2025-09-29)
 
+- Check out the [Release blog post](https://crawlee.dev/blog/crawlee-for-python-v1) for more details.
+- Check out the [Upgrading guide](https://crawlee.dev/python/docs/upgrading/upgrading-to-v1) to ensure a smooth update.
+
 ### 🚀 Features
 
 - Add utility for load and parse Sitemap and `SitemapRequestLoader` ([#1169](https://github.com/apify/crawlee-python/pull/1169)) ([66599f8](https://github.com/apify/crawlee-python/commit/66599f8d085f3a8622e130019b6fdce2325737de)) by [@Mantisus](https://github.com/Mantisus), closes [#1161](https://github.com/apify/crawlee-python/issues/1161)
@@ -199,6 +202,9 @@ All notable changes to this project will be documented in this file.
 
 ## [0.6.0](https://github.com/apify/crawlee-python/releases/tag/v0.6.0) (2025-03-03)
 
+- Check out the [Release blog post](https://crawlee.dev/blog/crawlee-for-python-v06) for more details.
+- Check out the [Upgrading guide](https://crawlee.dev/python/docs/upgrading/upgrading-to-v0x#upgrading-to-v06) to ensure a smooth update.
+
 ### 🚀 Features
 
 - Integrate browserforge fingerprints ([#829](https://github.com/apify/crawlee-python/pull/829)) ([2b156b4](https://github.com/apify/crawlee-python/commit/2b156b4ba688f9111195422e6058dff30eb1f782)) by [@Pijukatel](https://github.com/Pijukatel), closes [#549](https://github.com/apify/crawlee-python/issues/549)
@@ -279,6 +285,9 @@ All notable changes to this project will be documented in this file.
 
 ## [0.5.0](https://github.com/apify/crawlee-python/releases/tag/v0.5.0) (2025-01-02)
 
+- Check out the [Release blog post](https://crawlee.dev/blog/crawlee-for-python-v05) for more details.
+- Check out the [Upgrading guide](https://crawlee.dev/python/docs/upgrading/upgrading-to-v0x#upgrading-to-v05) to ensure a smooth update.
+
 ### 🚀 Features
 
 - Add possibility to use None as no proxy in tiered proxies ([#760](https://github.com/apify/crawlee-python/pull/760)) ([0fbd017](https://github.com/apify/crawlee-python/commit/0fbd01723b9fe2e3410e0f358cab2f22848b08d0)) by [@Pijukatel](https://github.com/Pijukatel), closes [#687](https://github.com/apify/crawlee-python/issues/687)
@@ -370,6 +379,8 @@ All notable changes to this project will be documented in this file.
 
 ## [0.4.0](https://github.com/apify/crawlee-python/releases/tag/v0.4.0) (2024-11-01)
 
+- Check out the [Upgrading guide](https://crawlee.dev/python/docs/upgrading/upgrading-to-v0x#upgrading-to-v04) to ensure a smooth update.
+
 ### 🚀 Features
 
 - [**breaking**] Add headers in unique key computation ([#609](https://github.com/apify/crawlee-python/pull/609)) ([6c4746f](https://github.com/apify/crawlee-python/commit/6c4746fa8ff86952a812b32a1d70dc910e76b43e)) by [@Prathamesh010](https://github.com/Prathamesh010), closes [#548](https://github.com/apify/crawlee-python/issues/548)
@@ -479,6 +490,8 @@ All notable changes to this project will be documented in this file.
 
 ## [0.3.0](https://github.com/apify/crawlee-python/releases/tag/v0.3.0) (2024-08-27)
 
+- Check out the [Upgrading guide](https://crawlee.dev/python/docs/upgrading/upgrading-to-v0x#upgrading-to-v03) to ensure a smooth update.
+
 ### 🚀 Features
 
 - Implement ParselCrawler that adds support for Parsel ([#348](https://github.com/apify/crawlee-python/pull/348)) ([a3832e5](https://github.com/apify/crawlee-python/commit/a3832e527f022f32cce4a80055da3b7967b74522)) by [@asymness](https://github.com/asymness), closes [#335](https://github.com/apify/crawlee-python/issues/335)
@@ -636,4 +649,4 @@ All notable changes to this project will be documented in this file.
 - Storage manager & purging the defaults ([#150](https://github.com/apify/crawlee-python/pull/150)) ([851042f](https://github.com/apify/crawlee-python/commit/851042f25ad07e25651768e476f098ef0ed21914)) by [@vdusek](https://github.com/vdusek)
 
 
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