Update docu for 3.0.0 release (#518)

* Remove submodule

* Replace old hugo theme with maintained

* Add example architecture

* Update docu to work with new theme

* Update docu 3.0.0

.gitmodules

@@ -1,9 +1,9 @@
-[submodule "docs/themes/hugo-theme-learn"]
-	path = docs/themes/hugo-theme-learn
-	url = https://github.com/matcornic/hugo-theme-learn.git
 [submodule "gogatekeeper.github.io"]
 	path = gogatekeeper.github.io
 	url = [email protected]:gogatekeeper/gogatekeeper.github.io.git
 [submodule "docs/public"]
 	path = docs/public
 	url = [email protected]:gogatekeeper/gogatekeeper.github.io.git
+[submodule "docs/themes/hugo-theme-relearn"]
+	path = docs/themes/hugo-theme-relearn
+	url = https://github.com/McShelby/hugo-theme-relearn

README.md

@@ -22,13 +22,13 @@ Please remember to provide a good summary, description as well as steps to repro
 To run Gatekeeper, you can build it using this command:
 
 ```bash
-docker buildx build --platform linux/amd64,linux/arm64 -t quay.io/gogatekeeper/gatekeeper:2.14.2 .
+docker buildx build --platform linux/amd64,linux/arm64 -t quay.io/gogatekeeper/gatekeeper:3.0.0 .
 ```
 
 or you can use aleady existing Docker image by running:
 
 ```bash
-docker run -it --rm quay.io/gogatekeeper/gatekeeper:2.14.2 \
+docker run -it --rm quay.io/gogatekeeper/gatekeeper:3.0.0 \
       --listen 127.0.0.1:8080 \
       --upstream-url http://127.0.0.1:80 \
       --discovery-url https://keycloak.example.com/realms/<REALM_NAME> \
@@ -44,16 +44,16 @@ Beside links to archives of binaries we provide also checksum file containing ch
 for archives. You can download file gatekeeper-checksum.txt, it contains sha512 checksums e.g.:
 
 ```
-324b34ece86b6214f835ba9fd79e185864a9005f514458796c22c053de63f428235d2d2a04864065a49c090ad81d2daeb45546544fdd9531a8dea1a43145b8f0  gatekeeper_2.14.2_windows_amd64.zip
-38759e75a94d130758cd26958bd9a66b261be8d58a6c7a0fc04845157649aaf628d22a115c95285b405f8e4d6afa8bd78ca8677d1304faf06db93a0cbbc831a6  gatekeeper_2.14.2_linux_amd64.tar.gz
-f5322e41b3d78017191246bdd54f99e9b3dd8d5ff9d224e7e81b678a952c1d5aae125ea4c251928969b0a0ea0dc59724308c918993c8227f384f61896f58cbd0  gatekeeper_2.14.2_macOS_amd64.tar.gz
+324b34ece86b6214f835ba9fd79e185864a9005f514458796c22c053de63f428235d2d2a04864065a49c090ad81d2daeb45546544fdd9531a8dea1a43145b8f0  gatekeeper_3.0.0_windows_amd64.zip
+38759e75a94d130758cd26958bd9a66b261be8d58a6c7a0fc04845157649aaf628d22a115c95285b405f8e4d6afa8bd78ca8677d1304faf06db93a0cbbc831a6  gatekeeper_3.0.0_linux_amd64.tar.gz
+f5322e41b3d78017191246bdd54f99e9b3dd8d5ff9d224e7e81b678a952c1d5aae125ea4c251928969b0a0ea0dc59724308c918993c8227f384f61896f58cbd0  gatekeeper_3.0.0_macOS_amd64.tar.gz
 ```
 
 After you download archive of binary you can calculate it's checksum by using e.g. sha512sum Linux utility:
 
 ```
-sha512sum /my/path/gatekeeper_2.14.2_linux_amd64.tar.gz
-38759e75a94d130758cd26958bd9a66b261be8d58a6c7a0fc04845157649aaf628d22a115c95285b405f8e4d6afa8bd78ca8677d1304faf06db93a0cbbc831a6  gatekeeper_2.14.2_linux_amd64.tar.g
+sha512sum /my/path/gatekeeper_3.0.0_linux_amd64.tar.gz
+38759e75a94d130758cd26958bd9a66b261be8d58a6c7a0fc04845157649aaf628d22a115c95285b405f8e4d6afa8bd78ca8677d1304faf06db93a0cbbc831a6  gatekeeper_3.0.0_linux_amd64.tar.g
 ```
 
 As you can see output of command is checksum, you can compare it with the one in gatekeeper-checksum.txt.

docs/config.toml

@@ -2,7 +2,7 @@ baseURL = "https://gogatekeeper.github.io/gatekeeper"
 languageCode = "en-us"
 title = "Gatekeeper"
 
-theme = "hugo-theme-learn"
+theme = "hugo-theme-relearn"
 
 [markup]
   [markup.asciidocExt]
@@ -35,17 +35,15 @@ theme = "hugo-theme-learn"
 
 # For search functionality
 [outputs]
-home = [ "HTML", "RSS", "JSON"]
+home = [ "HTML", "RSS"]
 
 [params]
 # Prefix URL to edit current page. Will display an "Edit this page" button on top right hand corner of every page.
 # Useful to give opportunity to people to create merge request for your doc.
 # See the config.toml file from this documentation site to have an example.
 editURL = ""
 # Author of the site, will be used in meta information
-author = "gogatekeeper"
-# Description of the site, will be used in meta information
-description = "Gatekeeper's homepage"
+author.name = "gogatekeeper"
 # Shows a checkmark for visited pages on the menu
 showVisitedLinks = false
 # Disable search function. It will hide search bar
@@ -65,8 +63,6 @@ disableLandingPageButton = true
 disableLanguageSwitchingButton = true
 # Hide breadcrumbs in the header and only show the current page title
 disableBreadcrumb = false
-# If set to true, prevents Hugo from including the mermaid module if not needed (will reduce load times and traffic)
-disableMermaid = false
 # Specifies the remote location of the mermaid js
 customMermaidURL = "https://unpkg.com/[email protected]/dist/mermaid.min.js"
 # Hide Next and Previous page buttons normally displayed full height beside content