Updates CHANGELOG and index.gmi

* Adds the Lagrange style, thanks to Eric <ortie10 at gmx.fr>.
* Adds circumlunar css.
* Removes the page-specific CSS.
* Rewrites the documentation.

CHANGELOG.gmi

@@ -21,6 +21,12 @@ All notable changes to this project will be documented in this file.
 * Be able to change the page style on the top bar.
 * Be able to change the font size.
 
+## [1.5.0] - 2022-08-23
+* Adds the Lagrange style, thanks to Eric <ortie10 at gmx.fr>
+* Adds circumlunar css
+* Removes the page-specific CSS
+* Rewrites the documentation
+
 ## [1.4.1] - 2022-08-02
 * Adds link to /htmgem on the icon of the menu
 * Fixes bug about CSS not applied correctly

index.gmi

@@ -1,6 +1,6 @@
 ```
  __    __   __                   ______
-|\ \  |\ \ |\ \                 /\     \        v1.4.1
+|\ \  |\ \ |\ \                 /\     \        v1.5.0+
 | ▓▓  | ▓▓_| ▓▓_   ______ ____ |  ▓▓▓▓▓▓\
 | ▓▓__| ▓▓   ▓▓ \ |\     \    \| ▓▓ __\▓▓/\     \|      \    \
 | ▓▓    ▓▓\▓▓▓▓▓▓ | ▓▓▓▓▓▓\▓▓▓▓\ ▓▓|    \  ▓▓▓▓▓▓\ ▓▓▓▓▓▓\▓▓▓▓\