chore: Fix typos/capitalization/etc

Author: PLNech

.github/CONTRIBUTING.md

@@ -5,15 +5,15 @@ This document provides general guidelines about how to contribute to the project
 
 ### Asking Questions
 
-We do not use github issues for general library support. We think this questions should be posted on stack overflow using [InstantSearch](http://http://stackoverflow.com/questions/tagged/InstantSearch) tag.
+We do not use GitHub issues for general library support. We think these questions should be posted on Stack Overflow using [InstantSearch](http://http://stackoverflow.com/questions/tagged/InstantSearch) tag.
 
 ### Reporting issues
 
 * Use [github issues](https://github.com/algolia/InstantSearch/issues) to report a bug.
 * Before creating a new issue:
   * Make sure you are using the [latest release](https://github.com/algolia/InstantSearch/releases).
   * Check if the issue was [already reported or fixed](https://github.com/algolia/InstantSearch/issues?utf8=%E2%9C%93&q=is%3Aissue). Notice that it may not be released yet.
-  * If you found a match add a brief comment "I have the same problem" or "+1". This helps prioritize the issues addressing the most common and critical first. If possible add additional information to help us reproduce and fix the issue. Please use your best judgement.    
+  * If you found a match add a brief comment "I have the same problem" or use the action `+1`. This helps prioritize the issues addressing the most common and critical first. If possible add additional information to help us reproduce and fix the issue. Please use your best judgement.    
 * Reporting issues:
   * Please include the following information to help maintainers to fix the problem faster:
     * Xcode version you are using.
@@ -24,20 +24,20 @@ We do not use github issues for general library support. We think this questions
 
 ### Pull requests
 
-The easiest way to start contributing is searching open issues by `help wanted` tag. We also add a `difficulty` tag (difficulty: easy, difficulty: moderate, difficulty: hard) in order to give an idea of how complex it can be to implement the feature according maintainers project experience.
+The easiest way to start contributing is searching open issues by `help wanted` tag. We also add a `difficulty` tag (difficulty: easy, difficulty: moderate, difficulty: hard) in order to give an idea of how complex it can be to implement the feature according to maintainers' project experience.
 
 * Add test coverage to the feature or fix. We only accept new feature pull requests that have related test coverage. This allows us to keep the library stable as we move forward.
 * Remember to document the new feature. We do not accept new feature pull requests without its associated documentation.
 * In case of a new feature please update the example project showing the feature.
-* Please only one fix or feature per pull request. This will increase the chances your feature will be merged.
+* Please only one fix or feature per pull request. This will increase the chances of your feature being merged.
 
 
 ###### Suggested git workflow to contribute
 
 1. Fork the InstantSearch repository.
 2. Clone your forked project into your developer machine: `git clone [email protected]:<your-github-username>/InstantSearch.git`
 3. Add the original project repo as upstream repository in your forked project: `git remote add upstream [email protected]:algolia/InstantSearch.git`
-4. Before starting a new feature make sure your forked master branch is synchronized upstream master branch. Considering you do not mere your pull request into master you can run: `git checkout master` and then `git pull upstream master`. Optionally `git push origin master`.
+4. Before starting a new feature make sure your forked master branch is synchronized upstream master branch. Considering you do not merge your pull request into master you can run: `git checkout master` and then `git pull upstream master`. Optionally `git push origin master`.
 5. Create a new branch. Note that the starting point is the upstream master branch HEAD. `git checkout -b my-feature-name`
 6. Stage all your changes `git add .` and commit them `git commit -m "Your commit message"`
 7. Make sure your branch is up to date with upstream master, `git pull --rebase upstream master`, resolve conflicts if necessary. This will move your commit to the top of git stack.
@@ -53,7 +53,7 @@ We try to follow our [swift style guide](https://github.com/algolia/Swift-Style-
 
 ### Feature proposal
 
-We would love to hear your ideas and make a discussions about it.
+We would love to hear your ideas and make a discussion about it.
 
 * Use github issues to make feature proposals.
 * We use `type: feature request` label to mark all [feature request issues](https://github.com/algolia/InstantSearch/labels/type%3A%20feature%20request).