doc: fix broken links and update information

Signed-off-by: Patrizio Bekerle <patrizio@bekerle.com>

lychee.toml

@@ -1,16 +1,26 @@
 # lychee --base . './**/*.md' --exclude github\.com --exclude \.onion --exclude itunes\.apple\.com --exclude twitter\.com --exclude-path webpage/node_modules/ --exclude-path webpage/src/*/*/references\.md
-exclude = ['github.com', '\.onion', 'itunes\.apple\.com', 'twitter\.com']
+exclude = [
+    'github.com',
+    '\.onion',
+    'itunes\.apple\.com',
+    'twitter\.com',
+    'www.paypal.com/cgi-bin/webscr',
+    'file:\/\/\/',
+    'http:\/\/0\.0\.0\.0',
+]
 exclude_path = [
     'webpage/node_modules/',
     'webpage/src/faq/references.md',
-    'webpage/src/ar/faq/references.md',
-    'webpage/src/de/faq/references.md',
-    'webpage/src/es/faq/references.md',
-    'webpage/src/fa/faq/references.md',
-    'webpage/src/fr/faq/references.md',
-    'webpage/src/hu/faq/references.md',
-    'webpage/src/it/faq/references.md',
-    'webpage/src/ko/faq/references.md',
-    'webpage/src/nl/faq/references.md',
-    'webpage/src/pl/faq/references.md',
+    'webpage/src/ar',
+    'webpage/src/de',
+    'webpage/src/es',
+    'webpage/src/fa',
+    'webpage/src/fr',
+    'webpage/src/hu',
+    'webpage/src/it',
+    'webpage/src/ko',
+    'webpage/src/nl',
+    'webpage/src/pl',
+    'src/libraries',
+    'webpage/src/changelog.md',
 ]

webpage/src/blog/2016-01-07-New-Linux-software-repositories-and-todo-list-support.md

@@ -25,4 +25,4 @@ To manage your todo lists you need [**ownCloud tasks**](https://apps.owncloud.co
 
 Please be encouraged to report any troubles, wishes or ideas you have on the [QOwnNotes issues page](https://github.com/pbek/QOwnNotes/issues)!
 
-You may also want to **subscribe** to the **[QOwnNotes RSS Feed](https://www.qownnotes.org/rss/feed/qownnotes-blog)** to get the latest information about the project.
+You may also want to **subscribe** to the **[QOwnNotes RSS Feed](https://www.qownnotes.org/rss.xml)** to get the latest information about the project.

webpage/src/blog/2016-01-09-New-release-version-RSS-feed.md

@@ -12,4 +12,4 @@ If you don't want to miss a single version of QOwnNotes you can subscribe to our
 
 And if you don't want to miss every source code commit there is the [QOwnNotes GitHub commit RSS feed](https://github.com/pbek/QOwnNotes/commits/develop.atom).
 
-Of course there also is the **[QOwnNotes blog RSS feed](https://www.qownnotes.org/rss/feed/qownnotes-blog)**, if you want the **latest news** about the project.
+Of course there also is the **[QOwnNotes blog RSS feed](https://www.qownnotes.org/rss.xml)**, if you want the **latest news** about the project.

webpage/src/contributing/get-involved.md

@@ -15,8 +15,6 @@ The various ways to get involved with QOwnNotes
 - Report problems or share ideas for new features on the [QOwnNotes **GitHub issues** page](https://github.com/pbek/QOwnNotes/issues)
 - If you have made a great editor schema please also post it at the [**GitHub issues** page](https://github.com/pbek/QOwnNotes/issues)
 - Share your scripts at the [**QOwnNotes scripts** GitHub page](https://github.com/qownnotes/scripts)
-- Share **your experience with QOwnNotes** on your own **YouTube** - or other - channel, but also gladly [**send your audio/video/text to Amy**](mailto:amydoralang@aol.de) to be uploaded on [**QOwnNotes in a Nutshell**](https://www.youtube.com/channel/UC6Xpk_B1MFfvhBCsH_MrOEw/videos)
-- You may want to answer a few, anonymous [**questions**](https://freeonlinesurveys.com/s/nA8t17k8) for us to help you getting better results with QOwnNotes
 
 ::: tip Important
 Read the [code of conduct](./code-of-conduct.md) before you get involved!

webpage/src/installation/freebsd.md

@@ -1,5 +1,6 @@
 # Install on FreeBSD
 
-There is a community-created package for **FreeBSD** by *Matthew Stobbs* at [QOwnNotes FreeBSD port](https://svnweb.freebsd.org/ports/head/deskutils/qownnotes).
+There is a (very old and deprecated) community-created package for **FreeBSD** by *Matthew Stobbs*
+at [QOwnNotes FreeBSD port](https://svnweb.freebsd.org/ports/head/deskutils/qownnotes/).
 
 A big thank you to Matthew!

webpage/src/installation/opensuse.md

@@ -104,19 +104,6 @@ zypper install qownnotes
 
 [Direct Download](https://download.opensuse.org/repositories/home:/pbek:/QOwnNotes/openSUSE_Tumbleweed)
 
-
-## SLE 12 SP3 Backports
-
-Run the following shell commands as root to add the repository and install QOwnNotes from there.
-
-```bash
-zypper addrepo -f http://download.opensuse.org/repositories/home:/pbek:/QOwnNotes/SLE_12_SP3_Backports/home:pbek:QOwnNotes.repo
-zypper refresh
-zypper install qownnotes
-```
-
-[Direct Download](https://download.opensuse.org/repositories/home:/pbek:/QOwnNotes/SLE_12_SP3_Backports)
-
 ## SLE 15
 
 Run the following shell commands as root to add the repository and install QOwnNotes from there.

webpage/src/installation/ubuntu.md

@@ -51,24 +51,24 @@ Afterward you should be able to execute the AppImage to run QOwnNotes.
 
 ## OBS Repository
 
-You may also be able to use the QOwnNotes on Ubuntu versions that aren't any more updated on Ubuntu Launchpad then you can
+You may also be able to use the QOwnNotes on Ubuntu versions that aren't anymore updated on Ubuntu Launchpad then you can
 use the repositories from the [Open Build Service](https://build.opensuse.org/package/show/home:pbek:QOwnNotes/desktop).
 
-Below are example calls for the xUbuntu 16.10 repository.
+Below are example calls for the xUbuntu 20.04 repository.
 
 Run the following shell command to trust the repository.
 
 ```bash
-wget http://download.opensuse.org/repositories/home:/pbek:/QOwnNotes/xUbuntu_16.10/Release.key -O - | sudo apt-key add -
+wget http://download.opensuse.org/repositories/home:/pbek:/QOwnNotes/xUbuntu_20.04/Release.key -O - | sudo apt-key add -
 ```
 
 Run the following shell commands to add the repository and install QOwnNotes from there.
 
 ```bash
 sudo su -
-sh -c "echo 'deb http://download.opensuse.org/repositories/home:/pbek:/QOwnNotes/xUbuntu_16.10/ /' >> /etc/apt/sources.list.d/qownnotes.list"
+sh -c "echo 'deb http://download.opensuse.org/repositories/home:/pbek:/QOwnNotes/xUbuntu_20.04/ /' >> /etc/apt/sources.list.d/qownnotes.list"
 apt-get update
 apt-get install qownnotes
 ```
 
-[Direct Download](https://download.opensuse.org/repositories/home:/pbek:/QOwnNotes/xUbuntu_16.10)
+[Direct Download](https://download.opensuse.org/repositories/home:/pbek:/QOwnNotes/xUbuntu_20.04)