Slightly update Readme (#362)

* Add the missing bracket in README

* Add direct links to the Flags section

“See below” confused me when I was reading the Readme. Haven’t figured “below” corresponds to the “Flags” section until I scrolled to the end.

README.md

@@ -101,7 +101,7 @@ This is the mode that [Babel](https://github.com/babel/babel) is currently using
 
 Independent mode Lerna projects allows maintainers to increment package versions independently of each other. Each time you publish, you will get a prompt for each package that has changed to specify if it's a patch, minor, major or custom change.
 
-Independent mode allows you to more specifically update versions for each package and makes sense for a group of components. Combining this mode with something like [semantic-release](https://github.com/semantic-release/semantic-release) would make it less painful. (There is work on this already at [atlassian/lerna-semantic-release](https://github.com/atlassian/lerna-semantic-release).
+Independent mode allows you to more specifically update versions for each package and makes sense for a group of components. Combining this mode with something like [semantic-release](https://github.com/semantic-release/semantic-release) would make it less painful. (There is work on this already at [atlassian/lerna-semantic-release](https://github.com/atlassian/lerna-semantic-release)).
 
 > The `version` key in `lerna.json` is ignored in independent mode.
 
@@ -156,7 +156,7 @@ When run, this command will:
 2. Symlink together all Lerna `packages` that are dependencies of each other.
 3. `npm prepublish` all bootstrapped packages.
 
-`lerna bootstrap` respects the `--ignore` flag (see below).
+`lerna bootstrap` respects the `--ignore` flag (see [Flags](#flags)).
 
 #### How `bootstrap` works
 
@@ -352,9 +352,9 @@ $ lerna run build
 
 Run an [npm script](https://docs.npmjs.com/misc/scripts) in each package that contains that script.
 
-`lerna run` respects the `--concurrency` flag (see below).
+`lerna run` respects the `--concurrency` flag (see [Flags](#flags)).
 
-`lerna run` respects the `--scope` flag (see below).
+`lerna run` respects the `--scope` flag (see [Flags](#flags)).
 
 ```sh
 $ lerna run --scope my-component test
@@ -370,9 +370,9 @@ $ lerna exec -- protractor conf.js
 
 Run an arbitrary command in each package.
 
-`lerna exec` respects the `--concurrency` flag (see below).
+`lerna exec` respects the `--concurrency` flag (see [Flags](#flags)).
 
-`lerna exec` respects the `--scope` flag (see below).
+`lerna exec` respects the `--scope` flag (see [Flags](#flags)).
 
 ```sh
 $ lerna exec --scope my-component -- ls -la