Fix some typos

Author: rubengees

.github/ISSUE_TEMPLATE.md

@@ -1,4 +1,4 @@
-- [ ] **I have verified that I am using the latest version and searched for exisiting issues** (If this checkbox is not ticked, the issue might be ignored).
+- [ ] **I have verified that I am using the latest version and searched for existing issues** (If this checkbox is not ticked, the issue might be ignored).
 
 I am using version: X.X  
 My device (if relevant) is: X  

README.md

@@ -290,7 +290,7 @@ private String getUrlToNewsImage(News news) {
 ##### Configuration
 
 The `ProxerConnection` allows for customization. The internally used libs are
-pluggable and you can specify some other arguments.  
+plugable and you can specify some other arguments.  
 Here is an example with all available customizations:
 
 ```java
@@ -310,7 +310,7 @@ The first line uses the alternate constructor, in which you pass a custom
 persistent `CookieJar` internally, based on `SharedPreferences`.
 
 The second line passes a custom `OkHttpClient`. Note that it has no effect to
-set your `CookieJar` to it as that will be overriden.
+set your `CookieJar` to it as that will be overridden.
 
 The third line passes a custom `Moshi` instance.
 

library/src/main/java/com/proxerme/library/connection/list/request/MediaSearchRequest.java

@@ -240,7 +240,7 @@ public MediaSearchRequest withLength(@Nullable @IntRange(from = 0, to = 400) Int
     }
 
     /**
-     * To be used in conjunction with {@link #withLength(Integer)}. Sets if the epsiode count must
+     * To be used in conjunction with {@link #withLength(Integer)}. Sets if the episode count must
      * be greater or smaller than the specified value.
      *
      * @param lengthBound The bound.

library/src/main/java/com/proxerme/library/connection/ucp/entitiy/HistoryEntry.java

@@ -147,7 +147,7 @@ public int getEpisode() {
     }
 
     /**
-     * Returns the last time the user has watched/read an epsiode.
+     * Returns the last time the user has watched/read an episode.
      *
      * @return The time.
      */

library/src/main/java/com/proxerme/library/connection/ucp/entitiy/Reminder.java

@@ -127,7 +127,7 @@ public String getName() {
     }
 
     /**
-     * Returns the epsiode.
+     * Returns the episode.
      *
      * @return The episode.
      */