Docs: replace http url with https, use ripgrep project url and fix typo

kitty/colors.h

@@ -64,7 +64,7 @@ extern PyTypeObject Color_Type;
 
 static inline double
 rgb_luminance(ARGB32 c) {
-    // From ITU BT 601 http://www.itu.int/rec/R-REC-BT.601
+    // From ITU BT 601 https://www.itu.int/rec/R-REC-BT.601
     return 0.299 * c.red + 0.587 * c.green + 0.114 * c.blue;
 }
 

kitty/main.py

@@ -114,7 +114,7 @@ def get_macos_shortcut_for(
     # for maximum robustness we should use opts.alias_map to resolve
     # aliases however this requires parsing everything on startup which could
     # be potentially slow. Lets just hope the user doesnt alias these
-    # fucntions.
+    # functions.
     ans = None
     candidates = []
     qkey = tuple(defn.split())