Add CHANGELOG for v0.5.0 release

Signed-off-by: Keshav Priyadarshi <[email protected]>

CHANGELOG.rst

@@ -2,6 +2,39 @@ Changelog
 =========
 
 
+v0.5.0
+-------
+- FetchCode now supports retrieving package info for following generic packages: 
+    * pkg:generic/linux
+    * pkg:generic/mtd-utils
+    * pkg:generic/barebox
+    * pkg:generic/e2fsprogs
+    * pkg:generic/udhcp
+    * pkg:generic/miniupnpc
+    * pkg:generic/miniupnpd
+    * pkg:generic/minissdpd
+    * pkg:generic/erofs-utils
+    * pkg:openssl/openssl
+
+- FetchCode also supports retrieving package info for packages hosted on GitHub specifically.
+    * pkg:github/avahi/avahi
+    * pkg:github/bestouff/genext2fs
+    * pkg:github/dosfstools/dosfstools
+    * pkg:github/google/brotli
+    * pkg:github/hewlettpackard/wireless-tools
+    * pkg:github/inotify-tools/inotify-tools
+    * pkg:github/libbpf/bpftool
+    * pkg:github/llvm/llvm-project
+    * pkg:github/nixos/nix
+    * pkg:github/plougher/squashfs-tools
+    * pkg:github/pupnp/pupnp
+    * pkg:github/python/cpython
+    * pkg:github/rpm-software-management/rpm
+    * pkg:github/shadow-maint/shadow
+    * pkg:github/sqlite/sqlite
+    * pkg:github/u-boot/u-boot
+
+
 v0.4.0
 -------
 - FetchCode now supports retrieving package info for following generic packages: 

src/fetchcode/package_util.py

@@ -14,9 +14,6 @@
 # CONDITIONS OF ANY KIND, either express or implied. See the License for the
 # specific language governing permissions and limitations under the License.
 
-# Since there will be no new releases of ipkg, it's better to
-# store them in a dictionary rather than fetching them every time.
-
 import dataclasses
 import re
 
@@ -324,6 +321,8 @@ def get_package_info(cls, gh_purl, package_name):
 }
 
 
+# Since there will be no new releases of ipkg, it's better to
+# store them in a dictionary rather than fetching them every time.
 IPKG_RELEASES = {
     "0.99.88": {
         "url": "https://web.archive.org/web/20090326020239/http:/handhelds.org/download/packages/ipkg/ipkg-0.99.88.tar.gz",