Remove redundant files in docs subfolder

These files were both in the Consul Democracy repository and the
documentation repository. Since now both repositories have been merged
into one, we can remove the duplicate files.

Note there was a small difference in the `.mdlrc` file because we
changed it in commit b3a718ae6. We're keeping this change so we don't
get these syntax warnings in the documentation.

.mdlrc

@@ -1 +1 @@
-rules "MD001", "MD002", "MD003", "MD004", "MD005", "MD006", "MD007", "MD008", "MD009", "MD010", "MD011", "MD012", "MD014", "MD015", "MD016", "MD017", "MD018", "MD019", "MD020", "MD021", "MD022", "MD023", "MD025", "MD026", "MD027", "MD028", "MD029", "MD030", "MD031", "MD032", "MD033", "MD034", "MD035", "MD036", "MD037", "MD038", "MD039", "MD040", "MD041"
+rules "MD001", "MD002", "MD003", "MD004", "MD005", "MD006", "MD007", "MD008", "MD009", "MD010", "MD011", "MD012", "MD014", "MD015", "MD016", "MD017", "MD018", "MD019", "MD020", "MD021", "MD022", "MD023", "MD025", "MD026", "MD027", "MD028", "MD030", "MD031", "MD032", "MD033", "MD034", "MD035", "MD036", "MD037", "MD038", "MD039", "MD040", "MD041"

docs/.gitignore

@@ -1,2 +0,0 @@
-.DS_Store
-_book/**/*

docs/.mdlrc

@@ -1 +0,0 @@
-rules "MD001", "MD002", "MD003", "MD004", "MD005", "MD006", "MD007", "MD008", "MD009", "MD010", "MD011", "MD012", "MD014", "MD015", "MD016", "MD017", "MD018", "MD019", "MD020", "MD021", "MD022", "MD023", "MD025", "MD026", "MD027", "MD028", "MD030", "MD031", "MD032", "MD033", "MD034", "MD035", "MD036", "MD037", "MD038", "MD039", "MD040", "MD041"

docs/README.md

@@ -1,5 +0,0 @@
-# Consul Democracy documentation
-
-:warning: The technical documentation has been moved to the [Consul Democracy documentation site](https://docs.consuldemocracy.org/). This repository is now read-only, since now the changes to the documentation are handled by editing the texts on that site.
-
-![CONSUL DEMOCRACY logo](img/consul_logo.png)