Describe help for commonly-used Git commands with examples

This patch adds the command `git help everyday`, which shows a
man-page that comes with Git describing the most common commands for
everyday usage.  The tip is specifically at the top of the list on the
grounds that it is the fastest way to find help for performing basic
operations in Git, which is very useful to people new to Git.

Signed-off-by: Eric James Michael Ritz <ejmr@plutono.com>

README.md

@@ -3,6 +3,7 @@
 
 <!-- @doxie.inject start toc -->
 <!-- Don’t remove or change the comment above – that can break automatic updates. -->
+* [Everyday Git in twenty commands or so](https://github.com/git-tips/tips#everyday-git-in-twenty-commands-or-so)
 * [Overwrite pull](https://github.com/git-tips/tips#overwrite-pull)
 * [List of all files till a commit](https://github.com/git-tips/tips#list-of-all-files-till-a-commit)
 * [Git reset first commit](https://github.com/git-tips/tips#git-reset-first-commit)
@@ -70,6 +71,11 @@
 
 <!-- @doxie.inject start -->
 <!-- Don’t remove or change the comment above – that can break automatic updates. -->
+## Everyday Git in twenty commands or so
+```sh
+git help everyday
+```
+
 ## Overwrite pull
 ```sh
 git fetch --all && git reset --hard origin/master

tips.json

@@ -1,4 +1,8 @@
 [
+  {
+      "title": "Everyday Git in twenty commands or so",
+      "tip": "git help everyday"
+  },
   {
       "title": "Overwrite pull",
       "tip": "git fetch --all && git reset --hard origin/master"
@@ -241,7 +245,7 @@
     "tip": "git bundle create <file> <branch-name>"
   },
   {
-    "title": "Import form a bundle",
+    "title": "Import from a bundle",
     "tip": "git clone repo.bundle <repo-dir> -b <branch-name>"
   },
   {