Add archive method to readme & landing page

Author: spoorcc

README.md

@@ -29,6 +29,8 @@ Dfetch must promote upstreaming changes, but allow for local customizations.
 The problem is described thoroughly in [managing external dependencies](https://embeddedartistry.com/blog/2020/06/22/qa-on-managing-external-dependencies/) and sometimes
 is also known as [*vendoring*](https://dfetch.readthedocs.io/en/latest/vendoring.html).
 
+Dfetch supports three source types: **Git**, **SVN**, and **archive files** (`.tar.gz`, `.tgz`, `.tar.bz2`, `.tar.xz`, `.zip`). Archives can be verified with a cryptographic hash (`sha256`, `sha384`, or `sha512`) to guarantee integrity on every fetch.
+
 Other tools that do similar things are ``Zephyr's West``, ``CMake ExternalProject`` and other meta tools.
 See [alternatives](https://dfetch.readthedocs.io/en/latest/alternatives.html) for a complete list.
 
@@ -43,7 +45,8 @@ See [alternatives](https://dfetch.readthedocs.io/en/latest/alternatives.html) fo
 * Compose multi-repo code bases into a single working tree
 * Vendoring dependencies for reproducible builds
 * Apply local patches while keeping upstream syncable
-* VCS-agnostic dependency management
+* VCS-agnostic dependency management (Git, SVN, and plain archives)
+* Fetch and verify archives with cryptographic integrity checks
 * Self-contained exports for releases or audits
 
 ## Install
@@ -110,6 +113,13 @@ manifest:
     dst: Tests/cpputest-git-src
     repo-path: cpputest/cpputest.git
     src: src
+
+  - name: my-library
+    dst: ext/my-library
+    url: https://example.com/releases/my-library-1.0.tar.gz
+    vcs: archive
+    integrity:
+      hash: sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
 ```
 
 ## Github Action

doc/landing-page/index.rst

@@ -3,8 +3,8 @@
 :sd_hide_title:
 
 .. meta::
-   :description: Dfetch vendors source code from Git and SVN repositories directly into your project. No submodules, no lock-in, fully self-contained.
-   :keywords: dfetch, dependency management, vendoring, git, svn, embedded development, source-only dependencies, multi-repo, supply chain, sbom, license compliance
+   :description: Dfetch vendors source code from Git or SVN repositories or plain archives directly into your project. No submodules, no lock-in, fully self-contained.
+   :keywords: dfetch, dependency management, vendoring, git, svn, archive, embedded development, source-only dependencies, multi-repo, supply chain, sbom, license compliance
    :author: Dfetch Contributors
    :google-site-verification: rXUIdonVCg6XtZUDdOd7fJdSNj3bOoJJRqCFn3OVb04
 
@@ -31,8 +31,8 @@ Dfetch
 **Vendor dependencies without the pain.**
 
 **Dfetch** copies source code directly into your project — no Git submodules, no SVN externals,
-no hidden external links. Dependencies live as plain, readable files inside your own repository.
-You stay in full control of every line.
+no hidden external links. Fetch from Git, SVN, or plain archive URLs. Dependencies live as plain,
+readable files inside your own repository. You stay in full control of every line.
 
 .. grid:: 1 3 3 3
    :gutter: 3
@@ -180,8 +180,8 @@ You stay in full control of every line.
          :text-align: center
          :class-card: stat-card
 
-         Works with **Git and SVN** — even mixed in the same project.
-         The only dependency manager that bridges both without compromise.
+         Works with **Git, SVN, and archive URLs** — even mixed in the same project.
+         The only dependency manager that bridges these without compromise.
 
       .. grid-item-card:: :material-regular:`code;2em` Any language, any build system
          :text-align: center
@@ -296,8 +296,8 @@ You stay in full control of every line.
 
          :material-regular:`shuffle;1.5em;sd-text-primary` **VCS-agnostic**
 
-         Works seamlessly with **Git and SVN** — even mixed within the same project.
-         Pin by tag, branch, revision, or exact commit hash. Adapt to your team's workflow, not the other way around.
+         Works seamlessly with **Git, SVN, and archive URLs** — even mixed within the same project.
+         Pin by tag, branch, revision, commit hash, or cryptographic hash. Adapt to your team's workflow, not the other way around.
 
       .. grid-item::