trailing punctuation in header

Signed-off-by: yupeng <[email protected]>

Author: yupeng

MAINTAINERS_GUIDE.md

@@ -7,7 +7,7 @@ features to the project. But most of your time will be spent reviewing,
 cleaning up, documenting, answering questions, justifying design
 decisions - while everyone has all the fun! But remember - the quality
 of the maintainers work is what distinguishes the good projects from the
-great.  So please be proud of your work, even the unglamourous parts,
+great.  So please be proud of your work, even the unglamorous parts,
 and encourage a culture of appreciation and respect for *every* aspect
 of improving the project - not just the hot new features.
 
@@ -53,7 +53,7 @@ All decisions affecting runc, big and small, follow the same 3 steps:
 * Step 3: Accept (`LGTM`) or refuse a pull request. The relevant maintainers do 
 this (see below "Who decides what?")
 
-### I'm a maintainer, should I make pull requests too?
+*I'm a maintainer, should I make pull requests too?*
 
 Yes. Nobody should ever push to master directly. All changes should be
 made through a pull request.
@@ -62,42 +62,42 @@ made through a pull request.
 
 All decisions are pull requests, and the relevant maintainers make
 decisions by accepting or refusing the pull request. Review and acceptance
-by anyone is denoted by adding a comment in the pull request: `LGTM`. 
+by anyone is denoted by adding a comment in the pull request: `LGTM`.
 However, only currently listed `MAINTAINERS` are counted towards the required
 two LGTMs.
 
 Overall the maintainer system works because of mutual respect across the
 maintainers of the project.  The maintainers trust one another to make decisions
-in the best interests of the project.  Sometimes maintainers can disagree and 
+in the best interests of the project.  Sometimes maintainers can disagree and
 this is part of a healthy project to represent the point of views of various people.
-In the case where maintainers cannot find agreement on a specific change the 
-role of a Chief Maintainer comes into play.  
+In the case where maintainers cannot find agreement on a specific change the
+role of a Chief Maintainer comes into play.
 
-The Chief Maintainer for the project is responsible for overall architecture 
-of the project to maintain conceptual integrity.  Large decisions and 
-architecture changes should be reviewed by the chief maintainer.  
-The current chief maintainer for the project is Michael Crosby (@crosbymichael).  
+The Chief Maintainer for the project is responsible for overall architecture
+of the project to maintain conceptual integrity.  Large decisions and
+architecture changes should be reviewed by the chief maintainer.
+The current chief maintainer for the project is Michael Crosby (@crosbymichael).
 
 Even though the maintainer system is built on trust, if there is a conflict
-with the chief maintainer on a decision, their decision can be challenged 
-and brought to the technical oversight board if two-thirds of the 
-maintainers vote for an appeal. It is expected that this would be a 
+with the chief maintainer on a decision, their decision can be challenged
+and brought to the technical oversight board if two-thirds of the
+maintainers vote for an appeal. It is expected that this would be a
 very exceptional event.
 
 
 ### How are maintainers added?
 
 The best maintainers have a vested interest in the project.  Maintainers
 are first and foremost contributors that have shown they are committed to
-the long term success of the project.  Contributors wanting to become 
-maintainers are expected to be deeply involved in contributing code, 
+the long term success of the project.  Contributors wanting to become
+maintainers are expected to be deeply involved in contributing code,
 pull request review, and triage of issues in the project for more than two months.
 
-Just contributing does not make you a maintainer, it is about building trust 
+Just contributing does not make you a maintainer, it is about building trust
 with the current maintainers of the project and being a person that they can
 depend on and trust to make decisions in the best interest of the project.  The
 final vote to add a new maintainer should be approved by over 66% of the current
-maintainers with the chief maintainer having veto power.  In case of a veto, 
+maintainers with the chief maintainer having veto power.  In case of a veto,
 conflict resolution rules expressed above apply.  The voting period is
 five business days on the Pull Request to add the new maintainer.
 

libcontainer/SPEC.md

@@ -306,7 +306,7 @@ a container.
 | Exec           | Execute a new process inside of the container  ( requires setns )  |
 | Set            | Setup configs of the container after it's created                  |
 
-### Execute a new process inside of a running container.
+### Execute a new process inside of a running container
 
 User can execute a new process inside of a running container. Any binaries to be
 executed must be accessible within the container's rootfs.