docs: environmental configuration (#3947)

* docs: environmental configuration

* docs: light changes

* docs: reformat

* remove sdk specific sections

* docs: add code formatting

* update api instructions

* docs: consolidate mTLS

* docs: add closing tab

* docs: fix broken links

* tighten up

* docs: line highlight

* docs: add dotnet and ruby to envconfig page

* docs: add ruby and dotnet

* docs: fix indentation issue

* docs: add dotnet and ruby client pages; fix broken links:

* docs: add config page to sidebar

* docs: fix small issues

* docs: fix broken anchor

* docs: add language highlighing for bash and toml

* separate reference to a different page

* docs: add to sidebar

* docs: environmental -> environment variable

* fix comment issue

* docs: fix comment

* fix build issue

* docs: fix small index page issues

* docs: change tab id

* docs: fix broken anchors

* docs: remove .net references

* docs: remove wrong sdk ref

* docs: small edit

* docs: updarte filename

* docs: fix code highlighting

* docs: remove nexus description changes

* docs: fix broken link

* docs: remove TS from mention temporarily

* docs: fix heading caps

* highlight lines

* update links

Author: lennessyy

.prettierrc

@@ -7,5 +7,5 @@
   "semi": true,
   "arrowParens": "always",
   "bracketSpacing": true,
-  "overrides": [{ "files": "**/*.{md,mx}", "options": { "parser": "mdx" } }]
+  "overrides": [{ "files": "**/*.{md,mdx}", "options": { "parser": "mdx" } }]
 }