how to update mkdoc env (removed instructions for docker mkdocs use) (geonetwork#8089)

* how to update mkdoc env (removed instructions for docker mkdocs use)
* maintenance release description, fix broken link on change-log/history for stable and maintenance headings
* added outdated banner for when 4.4.x eventually is unsupported
* fix documentation warnings

Author: jodygarnett

docs/manual/README.md

@@ -23,6 +23,12 @@ If you are using Python3:
    ```bash
    pip3 install -r requirements.txt
    ```
+   
+   In the future you can update using:
+   
+   ```bash
+   pip3 install -r requirements.txt -U 
+   ```
 
 2. Use ***mkdocs** to preview locally:
 
@@ -55,6 +61,13 @@ If you use a Python virtual environment:
    pip install -r requirements.txt
    ```
 
+   In the future you can update with:
+   
+   ```bash
+   source venv/bin/activate
+   pip3 install -r requirements.txt
+   ```
+   
 2. Use ***mkdocs*** to preview from virtual environment:
 
    ```bash
@@ -63,18 +76,16 @@ If you use a Python virtual environment:
 
 3. Preview: http://localhost:8000
 
-### Docker
-
-If you are not familiar with Python the MkDocs-material website has instructions for Docker:
-
-1. Run MkDocs in Docker environment:
-
+   Preview uses a single version, so expect some warnings from version chooser:
    ```
-   docker pull squidfunk/mkdocs-material
-   docker run --rm -it -p 8000:8000 -v ${PWD}:/docs squidfunk/mkdocs-material
+   "GET /versions.json HTTP/1.1" code 404
    ```
+
+4. Optional: Preview online help:
 
-2. Preview: http://localhost:8000
+   ```bash
+   mkdocs serve --config-file help.yml  
+   ```
 
 ## Maven Integration
 
@@ -108,7 +119,7 @@ If you wish to preview using your own `gh-pages` branch:
    mike deploy --title "4.4 Latest" --alias-type=copy --update-aliases 4.4 latest
    ```
 
-2. To deploy documentation for a new release:
+2. To deploy documentation for stable release:
 
    ```bash
    mike deploy --push --alias-type=copy 4.2 stable

docs/manual/docs/help/record/index.md

@@ -194,7 +194,7 @@ Download the contents of a single record.
     -   A folder containing complete **`metadata.xml`** record, and simplified
         ***`metadata-iso19139.xml`*** record.
     -   ***`index.html`** and **`index.csv`** summary described in
-        the [previous section](#download-from-search-results).
+        the [previous section](../search/index.md#download-from-search-results).
 
     ![](img/export_record_zip.png)
     *Export (ZIP) index.html summary*

docs/manual/docs/overview/change-log/history/index.md

@@ -1,14 +1,14 @@
 # Release History
 
-The GeoNetwork community is not large enough to maintain many active branches of GeoNetwork at one time. Older installations of GeoNetwork may be subject to disclosed security vulnerabilities resulting in our recommendation to update to the supported [stable](http://docs.geonetwork-opensource.org/stable/) or [maintenance](https://docs.geonetwork-opensource.org/maintenance/) series if available.
+The GeoNetwork community is not large enough to maintain many active branches of GeoNetwork at one time. Older installations of GeoNetwork may be subject to disclosed security vulnerabilities resulting in our recommendation to update to the supported [stable](#stable-release) or [maintenance](#maintenance-release) series listed below.
 
 Volunteers wishing to backport security fixes to older versions of GeoNetwork are welcome to do so. Commercial support providers are welcome to do so on behalf of their customers.
 
 ## Latest Release
 
 The latest release of GeoNetwork is recommended for those enjoying the newest features from the GeoNetwork community. 
 
-This series is under active development by our community, with new features, improvements, documentation updates, bug reports, fixes, and releases.
+This series is under **active development** by our community, with new features, improvements, documentation updates, bug reports, fixes, and releases.
 
 ### 4.4
 
@@ -22,7 +22,7 @@ This series is under active development by our community, with new features, imp
 
 The stable release of GeoNetwork is recommended for production use and for new installations of GeoNetwork.
 
-This series is under active use by our community, with regular improvements, documentation updates, bug reports, fixes, and releases.
+This series is under **active use** by our community, with regular improvements, documentation updates, bug reports, fixes, and releases.
 
 ### 4.2
 
@@ -41,7 +41,7 @@ This series is under active use by our community, with regular improvements, doc
 
 The maintenance release of GeoNetwork provides production systems with essential updates and fixes to allow time to upgrade to the recommended stable release. 
 
-This series is no longer under active development, providing essential fixes, and releases only.
+When available the maintenace series provides **time to upgrade** for our community - limited to providing essential fixes only.
 
 ### No maintenance release